291225280

素因数分解:

$2^6\times 5^1\times {\mathrm{659}}^1\times {\mathrm{1381}}^1$

素因数の和:2057

約数の個数: 56

約数和(自身を含む): 695035440

約数和(自身を除く): 403810160

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 659, 1318, 1381, 2636, 2762, 3295, 5272, 5524, 6590, 6905, 10544, 11048, 13180, 13810, 21088, 22096, 26360, 27620, 42176, 44192, 52720, 55240, 88384, 105440, 110480, 210880, 220960, 441920, 910079, 1820158, 3640316, 4550395, 7280632, 9100790, 14561264, 18201580, 29122528, 36403160, 58245056, 72806320, 145612640, 291225280]

約数ペア:

[(1, 291225280), (2, 145612640), (4, 72806320), (5, 58245056), (8, 36403160), (10, 29122528), (16, 18201580), (20, 14561264), (32, 9100790), (40, 7280632), (64, 4550395), (80, 3640316), (160, 1820158), (320, 910079), (659, 441920), (1318, 220960), (1381, 210880), (2636, 110480), (2762, 105440), (3295, 88384), (5272, 55240), (5524, 52720), (6590, 44192), (6905, 42176), (10544, 27620), (11048, 26360), (13180, 22096), (13810, 21088)]