18871541864

素因数分解:

$2^3\times 7^1\times {\mathrm{37}}^1\times {\mathrm{593}}^1\times {\mathrm{15359}}^1$

素因数の和:16002

約数の個数: 64

約数和(自身を含む): 41604710400

約数和(自身を除く): 22733168536

約数列:

[1, 2, 4, 7, 8, 14, 28, 37, 56, 74, 148, 259, 296, 518, 593, 1036, 1186, 2072, 2372, 4151, 4744, 8302, 15359, 16604, 21941, 30718, 33208, 43882, 61436, 87764, 107513, 122872, 153587, 175528, 215026, 307174, 430052, 568283, 614348, 860104, 1136566, 1228696, 2273132, 3977981, 4546264, 7955962, 9107887, 15911924, 18215774, 31823848, 36431548, 63755209, 72863096, 127510418, 255020836, 336991819, 510041672, 673983638, 1347967276, 2358942733, 2695934552, 4717885466, 9435770932, 18871541864]

約数ペア:

[(1, 18871541864), (2, 9435770932), (4, 4717885466), (7, 2695934552), (8, 2358942733), (14, 1347967276), (28, 673983638), (37, 510041672), (56, 336991819), (74, 255020836), (148, 127510418), (259, 72863096), (296, 63755209), (518, 36431548), (593, 31823848), (1036, 18215774), (1186, 15911924), (2072, 9107887), (2372, 7955962), (4151, 4546264), (4744, 3977981), (8302, 2273132), (15359, 1228696), (16604, 1136566), (21941, 860104), (30718, 614348), (33208, 568283), (43882, 430052), (61436, 307174), (87764, 215026), (107513, 175528), (122872, 153587)]