51391120

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^2\times {\mathrm{5309}}^1$

素因数の和:5344

約数の個数: 60

約数和(自身を含む): 131358780

約数和(自身を除く): 79967660

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 121, 176, 220, 242, 440, 484, 605, 880, 968, 1210, 1936, 2420, 4840, 5309, 9680, 10618, 21236, 26545, 42472, 53090, 58399, 84944, 106180, 116798, 212360, 233596, 291995, 424720, 467192, 583990, 642389, 934384, 1167980, 1284778, 2335960, 2569556, 3211945, 4671920, 5139112, 6423890, 10278224, 12847780, 25695560, 51391120]

約数ペア:

[(1, 51391120), (2, 25695560), (4, 12847780), (5, 10278224), (8, 6423890), (10, 5139112), (11, 4671920), (16, 3211945), (20, 2569556), (22, 2335960), (40, 1284778), (44, 1167980), (55, 934384), (80, 642389), (88, 583990), (110, 467192), (121, 424720), (176, 291995), (220, 233596), (242, 212360), (440, 116798), (484, 106180), (605, 84944), (880, 58399), (968, 53090), (1210, 42472), (1936, 26545), (2420, 21236), (4840, 10618), (5309, 9680)]