8164240

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{239}}^1$

素因数の和:320

約数の個数: 80

約数和(自身を含む): 22141440

約数和(自身を除く): 13977200

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 61, 70, 80, 112, 122, 140, 239, 244, 280, 305, 427, 478, 488, 560, 610, 854, 956, 976, 1195, 1220, 1673, 1708, 1912, 2135, 2390, 2440, 3346, 3416, 3824, 4270, 4780, 4880, 6692, 6832, 8365, 8540, 9560, 13384, 14579, 16730, 17080, 19120, 26768, 29158, 33460, 34160, 58316, 66920, 72895, 102053, 116632, 133840, 145790, 204106, 233264, 291580, 408212, 510265, 583160, 816424, 1020530, 1166320, 1632848, 2041060, 4082120, 8164240]

約数ペア:

[(1, 8164240), (2, 4082120), (4, 2041060), (5, 1632848), (7, 1166320), (8, 1020530), (10, 816424), (14, 583160), (16, 510265), (20, 408212), (28, 291580), (35, 233264), (40, 204106), (56, 145790), (61, 133840), (70, 116632), (80, 102053), (112, 72895), (122, 66920), (140, 58316), (239, 34160), (244, 33460), (280, 29158), (305, 26768), (427, 19120), (478, 17080), (488, 16730), (560, 14579), (610, 13384), (854, 9560), (956, 8540), (976, 8365), (1195, 6832), (1220, 6692), (1673, 4880), (1708, 4780), (1912, 4270), (2135, 3824), (2390, 3416), (2440, 3346)]