90910820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{239}}^1$

素因数の和:298

約数の個数: 192

約数和(自身を含む): 270950400

約数和(自身を除く): 180039580

約数列:

[1, 2, 4, 5, 7, 10, 11, 13, 14, 19, 20, 22, 26, 28, 35, 38, 44, 52, 55, 65, 70, 76, 77, 91, 95, 110, 130, 133, 140, 143, 154, 182, 190, 209, 220, 239, 247, 260, 266, 286, 308, 364, 380, 385, 418, 455, 478, 494, 532, 572, 665, 715, 770, 836, 910, 956, 988, 1001, 1045, 1195, 1235, 1330, 1430, 1463, 1540, 1673, 1729, 1820, 2002, 2090, 2390, 2470, 2629, 2660, 2717, 2860, 2926, 3107, 3346, 3458, 4004, 4180, 4541, 4780, 4940, 5005, 5258, 5434, 5852, 6214, 6692, 6916, 7315, 8365, 8645, 9082, 10010, 10516, 10868, 12428, 13145, 13585, 14630, 15535, 16730, 17290, 18164, 18403, 19019, 20020, 21749, 22705, 26290, 27170, 29260, 31070, 31787, 33460, 34177, 34580, 36806, 38038, 43498, 45410, 49951, 52580, 54340, 59033, 62140, 63574, 68354, 73612, 76076, 86996, 90820, 92015, 95095, 99902, 108745, 118066, 127148, 136708, 158935, 170885, 184030, 190190, 199804, 217490, 236132, 239239, 249755, 295165, 317870, 341770, 349657, 368060, 380380, 413231, 434980, 478478, 499510, 590330, 635740, 649363, 683540, 699314, 826462, 956956, 999020, 1180660, 1196195, 1298726, 1398628, 1652924, 1748285, 2066155, 2392390, 2597452, 3246815, 3496570, 4132310, 4545541, 4784780, 6493630, 6993140, 8264620, 9091082, 12987260, 18182164, 22727705, 45455410, 90910820]

約数ペア:

[(1, 90910820), (2, 45455410), (4, 22727705), (5, 18182164), (7, 12987260), (10, 9091082), (11, 8264620), (13, 6993140), (14, 6493630), (19, 4784780), (20, 4545541), (22, 4132310), (26, 3496570), (28, 3246815), (35, 2597452), (38, 2392390), (44, 2066155), (52, 1748285), (55, 1652924), (65, 1398628), (70, 1298726), (76, 1196195), (77, 1180660), (91, 999020), (95, 956956), (110, 826462), (130, 699314), (133, 683540), (140, 649363), (143, 635740), (154, 590330), (182, 499510), (190, 478478), (209, 434980), (220, 413231), (239, 380380), (247, 368060), (260, 349657), (266, 341770), (286, 317870), (308, 295165), (364, 249755), (380, 239239), (385, 236132), (418, 217490), (455, 199804), (478, 190190), (494, 184030), (532, 170885), (572, 158935), (665, 136708), (715, 127148), (770, 118066), (836, 108745), (910, 99902), (956, 95095), (988, 92015), (1001, 90820), (1045, 86996), (1195, 76076), (1235, 73612), (1330, 68354), (1430, 63574), (1463, 62140), (1540, 59033), (1673, 54340), (1729, 52580), (1820, 49951), (2002, 45410), (2090, 43498), (2390, 38038), (2470, 36806), (2629, 34580), (2660, 34177), (2717, 33460), (2860, 31787), (2926, 31070), (3107, 29260), (3346, 27170), (3458, 26290), (4004, 22705), (4180, 21749), (4541, 20020), (4780, 19019), (4940, 18403), (5005, 18164), (5258, 17290), (5434, 16730), (5852, 15535), (6214, 14630), (6692, 13585), (6916, 13145), (7315, 12428), (8365, 10868), (8645, 10516), (9082, 10010)]