78810640

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{167}}^1\times {\mathrm{347}}^1$

素因数の和:544

約数の個数: 80

約数和(自身を含む): 195737472

約数和(自身を除く): 116926832

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 167, 170, 272, 334, 340, 347, 668, 680, 694, 835, 1336, 1360, 1388, 1670, 1735, 2672, 2776, 2839, 3340, 3470, 5552, 5678, 5899, 6680, 6940, 11356, 11798, 13360, 13880, 14195, 22712, 23596, 27760, 28390, 29495, 45424, 47192, 56780, 57949, 58990, 94384, 113560, 115898, 117980, 227120, 231796, 235960, 289745, 463592, 471920, 579490, 927184, 985133, 1158980, 1970266, 2317960, 3940532, 4635920, 4925665, 7881064, 9851330, 15762128, 19702660, 39405320, 78810640]

約数ペア:

[(1, 78810640), (2, 39405320), (4, 19702660), (5, 15762128), (8, 9851330), (10, 7881064), (16, 4925665), (17, 4635920), (20, 3940532), (34, 2317960), (40, 1970266), (68, 1158980), (80, 985133), (85, 927184), (136, 579490), (167, 471920), (170, 463592), (272, 289745), (334, 235960), (340, 231796), (347, 227120), (668, 117980), (680, 115898), (694, 113560), (835, 94384), (1336, 58990), (1360, 57949), (1388, 56780), (1670, 47192), (1735, 45424), (2672, 29495), (2776, 28390), (2839, 27760), (3340, 23596), (3470, 22712), (5552, 14195), (5678, 13880), (5899, 13360), (6680, 11798), (6940, 11356)]