51447780

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{17}}^2\times {\mathrm{23}}^1\times {\mathrm{43}}^1$

素因数の和:115

約数の個数: 216

約数和(自身を含む): 177008832

約数和(自身を除く): 125561052

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 17, 18, 20, 23, 30, 34, 36, 43, 45, 46, 51, 60, 68, 69, 85, 86, 90, 92, 102, 115, 129, 138, 153, 170, 172, 180, 204, 207, 215, 230, 255, 258, 276, 289, 306, 340, 345, 387, 391, 414, 430, 460, 510, 516, 578, 612, 645, 690, 731, 765, 774, 782, 828, 860, 867, 989, 1020, 1035, 1156, 1173, 1290, 1380, 1445, 1462, 1530, 1548, 1564, 1734, 1935, 1955, 1978, 2070, 2193, 2346, 2580, 2601, 2890, 2924, 2967, 3060, 3468, 3519, 3655, 3870, 3910, 3956, 4140, 4335, 4386, 4692, 4945, 5202, 5780, 5865, 5934, 6579, 6647, 7038, 7310, 7740, 7820, 8670, 8772, 8901, 9890, 10404, 10965, 11730, 11868, 12427, 13005, 13158, 13294, 14076, 14620, 14835, 16813, 17340, 17595, 17802, 19780, 19941, 21930, 23460, 24854, 26010, 26316, 26588, 29670, 32895, 33235, 33626, 35190, 35604, 37281, 39882, 43860, 44505, 49708, 50439, 52020, 59340, 59823, 62135, 65790, 66470, 67252, 70380, 74562, 79764, 84065, 89010, 99705, 100878, 111843, 119646, 124270, 131580, 132940, 149124, 151317, 168130, 178020, 186405, 199410, 201756, 223686, 239292, 248540, 252195, 285821, 299115, 302634, 336260, 372810, 398820, 447372, 504390, 559215, 571642, 598230, 605268, 745620, 756585, 857463, 1008780, 1118430, 1143284, 1196460, 1429105, 1513170, 1714926, 2236860, 2572389, 2858210, 3026340, 3429852, 4287315, 5144778, 5716420, 8574630, 10289556, 12861945, 17149260, 25723890, 51447780]

約数ペア:

[(1, 51447780), (2, 25723890), (3, 17149260), (4, 12861945), (5, 10289556), (6, 8574630), (9, 5716420), (10, 5144778), (12, 4287315), (15, 3429852), (17, 3026340), (18, 2858210), (20, 2572389), (23, 2236860), (30, 1714926), (34, 1513170), (36, 1429105), (43, 1196460), (45, 1143284), (46, 1118430), (51, 1008780), (60, 857463), (68, 756585), (69, 745620), (85, 605268), (86, 598230), (90, 571642), (92, 559215), (102, 504390), (115, 447372), (129, 398820), (138, 372810), (153, 336260), (170, 302634), (172, 299115), (180, 285821), (204, 252195), (207, 248540), (215, 239292), (230, 223686), (255, 201756), (258, 199410), (276, 186405), (289, 178020), (306, 168130), (340, 151317), (345, 149124), (387, 132940), (391, 131580), (414, 124270), (430, 119646), (460, 111843), (510, 100878), (516, 99705), (578, 89010), (612, 84065), (645, 79764), (690, 74562), (731, 70380), (765, 67252), (774, 66470), (782, 65790), (828, 62135), (860, 59823), (867, 59340), (989, 52020), (1020, 50439), (1035, 49708), (1156, 44505), (1173, 43860), (1290, 39882), (1380, 37281), (1445, 35604), (1462, 35190), (1530, 33626), (1548, 33235), (1564, 32895), (1734, 29670), (1935, 26588), (1955, 26316), (1978, 26010), (2070, 24854), (2193, 23460), (2346, 21930), (2580, 19941), (2601, 19780), (2890, 17802), (2924, 17595), (2967, 17340), (3060, 16813), (3468, 14835), (3519, 14620), (3655, 14076), (3870, 13294), (3910, 13158), (3956, 13005), (4140, 12427), (4335, 11868), (4386, 11730), (4692, 10965), (4945, 10404), (5202, 9890), (5780, 8901), (5865, 8772), (5934, 8670), (6579, 7820), (6647, 7740), (7038, 7310)]