2785159040

素因数分解:

$2^7\times 5^1\times {\mathrm{31}}^1\times {\mathrm{140381}}^1$

素因数の和:140431

約数の個数: 64

約数和(自身を含む): 6873102720

約数和(自身を除く): 4087943680

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 248, 310, 320, 496, 620, 640, 992, 1240, 1984, 2480, 3968, 4960, 9920, 19840, 140381, 280762, 561524, 701905, 1123048, 1403810, 2246096, 2807620, 4351811, 4492192, 5615240, 8703622, 8984384, 11230480, 17407244, 17968768, 21759055, 22460960, 34814488, 43518110, 44921920, 69628976, 87036220, 89843840, 139257952, 174072440, 278515904, 348144880, 557031808, 696289760, 1392579520, 2785159040]

約数ペア:

[(1, 2785159040), (2, 1392579520), (4, 696289760), (5, 557031808), (8, 348144880), (10, 278515904), (16, 174072440), (20, 139257952), (31, 89843840), (32, 87036220), (40, 69628976), (62, 44921920), (64, 43518110), (80, 34814488), (124, 22460960), (128, 21759055), (155, 17968768), (160, 17407244), (248, 11230480), (310, 8984384), (320, 8703622), (496, 5615240), (620, 4492192), (640, 4351811), (992, 2807620), (1240, 2246096), (1984, 1403810), (2480, 1123048), (3968, 701905), (4960, 561524), (9920, 280762), (19840, 140381)]