1280513560

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{409}}^1\times {\mathrm{2699}}^1$

素因数の和:3148

約数の個数: 64

約数和(自身を含む): 2988900000

約数和(自身を除く): 1708386440

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 58, 116, 145, 232, 290, 409, 580, 818, 1160, 1636, 2045, 2699, 3272, 4090, 5398, 8180, 10796, 11861, 13495, 16360, 21592, 23722, 26990, 47444, 53980, 59305, 78271, 94888, 107960, 118610, 156542, 237220, 313084, 391355, 474440, 626168, 782710, 1103891, 1565420, 2207782, 3130840, 4415564, 5519455, 8831128, 11038910, 22077820, 32012839, 44155640, 64025678, 128051356, 160064195, 256102712, 320128390, 640256780, 1280513560]

約数ペア:

[(1, 1280513560), (2, 640256780), (4, 320128390), (5, 256102712), (8, 160064195), (10, 128051356), (20, 64025678), (29, 44155640), (40, 32012839), (58, 22077820), (116, 11038910), (145, 8831128), (232, 5519455), (290, 4415564), (409, 3130840), (580, 2207782), (818, 1565420), (1160, 1103891), (1636, 782710), (2045, 626168), (2699, 474440), (3272, 391355), (4090, 313084), (5398, 237220), (8180, 156542), (10796, 118610), (11861, 107960), (13495, 94888), (16360, 78271), (21592, 59305), (23722, 53980), (26990, 47444)]