217286520

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{421}}^1$

素因数の和:486

約数の個数: 256

約数和(自身を含む): 787553280

約数和(自身を除く): 570266760

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 17, 20, 22, 23, 24, 30, 33, 34, 40, 44, 46, 51, 55, 60, 66, 68, 69, 85, 88, 92, 102, 110, 115, 120, 132, 136, 138, 165, 170, 184, 187, 204, 220, 230, 253, 255, 264, 276, 330, 340, 345, 374, 391, 408, 421, 440, 460, 506, 510, 552, 561, 660, 680, 690, 748, 759, 782, 842, 920, 935, 1012, 1020, 1122, 1173, 1263, 1265, 1320, 1380, 1496, 1518, 1564, 1684, 1870, 1955, 2024, 2040, 2105, 2244, 2346, 2526, 2530, 2760, 2805, 3036, 3128, 3368, 3740, 3795, 3910, 4210, 4301, 4488, 4631, 4692, 5052, 5060, 5610, 5865, 6072, 6315, 7157, 7480, 7590, 7820, 8420, 8602, 9262, 9384, 9683, 10104, 10120, 11220, 11730, 12630, 12903, 13893, 14314, 15180, 15640, 16840, 17204, 18524, 19366, 21471, 21505, 22440, 23155, 23460, 25260, 25806, 27786, 28628, 29049, 30360, 34408, 35785, 37048, 38732, 42942, 43010, 46310, 46920, 48415, 50520, 51612, 55572, 57256, 58098, 64515, 69465, 71570, 77464, 78727, 85884, 86020, 92620, 96830, 103224, 106513, 107355, 111144, 116196, 129030, 138930, 143140, 145245, 157454, 164611, 171768, 172040, 185240, 193660, 213026, 214710, 232392, 236181, 258060, 277860, 286280, 290490, 314908, 319539, 329222, 387320, 393635, 426052, 429420, 472362, 493833, 516120, 532565, 555720, 580980, 629816, 639078, 658444, 787270, 823055, 852104, 858840, 944724, 987666, 1065130, 1161960, 1180905, 1278156, 1316888, 1574540, 1597695, 1646110, 1810721, 1889448, 1975332, 2130260, 2361810, 2469165, 2556312, 3149080, 3195390, 3292220, 3621442, 3950664, 4260520, 4723620, 4938330, 5432163, 6390780, 6584440, 7242884, 9053605, 9447240, 9876660, 10864326, 12781560, 14485768, 18107210, 19753320, 21728652, 27160815, 36214420, 43457304, 54321630, 72428840, 108643260, 217286520]

約数ペア:

[(1, 217286520), (2, 108643260), (3, 72428840), (4, 54321630), (5, 43457304), (6, 36214420), (8, 27160815), (10, 21728652), (11, 19753320), (12, 18107210), (15, 14485768), (17, 12781560), (20, 10864326), (22, 9876660), (23, 9447240), (24, 9053605), (30, 7242884), (33, 6584440), (34, 6390780), (40, 5432163), (44, 4938330), (46, 4723620), (51, 4260520), (55, 3950664), (60, 3621442), (66, 3292220), (68, 3195390), (69, 3149080), (85, 2556312), (88, 2469165), (92, 2361810), (102, 2130260), (110, 1975332), (115, 1889448), (120, 1810721), (132, 1646110), (136, 1597695), (138, 1574540), (165, 1316888), (170, 1278156), (184, 1180905), (187, 1161960), (204, 1065130), (220, 987666), (230, 944724), (253, 858840), (255, 852104), (264, 823055), (276, 787270), (330, 658444), (340, 639078), (345, 629816), (374, 580980), (391, 555720), (408, 532565), (421, 516120), (440, 493833), (460, 472362), (506, 429420), (510, 426052), (552, 393635), (561, 387320), (660, 329222), (680, 319539), (690, 314908), (748, 290490), (759, 286280), (782, 277860), (842, 258060), (920, 236181), (935, 232392), (1012, 214710), (1020, 213026), (1122, 193660), (1173, 185240), (1263, 172040), (1265, 171768), (1320, 164611), (1380, 157454), (1496, 145245), (1518, 143140), (1564, 138930), (1684, 129030), (1870, 116196), (1955, 111144), (2024, 107355), (2040, 106513), (2105, 103224), (2244, 96830), (2346, 92620), (2526, 86020), (2530, 85884), (2760, 78727), (2805, 77464), (3036, 71570), (3128, 69465), (3368, 64515), (3740, 58098), (3795, 57256), (3910, 55572), (4210, 51612), (4301, 50520), (4488, 48415), (4631, 46920), (4692, 46310), (5052, 43010), (5060, 42942), (5610, 38732), (5865, 37048), (6072, 35785), (6315, 34408), (7157, 30360), (7480, 29049), (7590, 28628), (7820, 27786), (8420, 25806), (8602, 25260), (9262, 23460), (9384, 23155), (9683, 22440), (10104, 21505), (10120, 21471), (11220, 19366), (11730, 18524), (12630, 17204), (12903, 16840), (13893, 15640), (14314, 15180)]