72225920

素因数分解:

$2^7\times 5^1\times {\mathrm{13}}^1\times {\mathrm{8681}}^1$

素因数の和:8713

約数の個数: 64

約数和(自身を含む): 185968440

約数和(自身を除く): 113742520

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 128, 130, 160, 208, 260, 320, 416, 520, 640, 832, 1040, 1664, 2080, 4160, 8320, 8681, 17362, 34724, 43405, 69448, 86810, 112853, 138896, 173620, 225706, 277792, 347240, 451412, 555584, 564265, 694480, 902824, 1111168, 1128530, 1388960, 1805648, 2257060, 2777920, 3611296, 4514120, 5555840, 7222592, 9028240, 14445184, 18056480, 36112960, 72225920]

約数ペア:

[(1, 72225920), (2, 36112960), (4, 18056480), (5, 14445184), (8, 9028240), (10, 7222592), (13, 5555840), (16, 4514120), (20, 3611296), (26, 2777920), (32, 2257060), (40, 1805648), (52, 1388960), (64, 1128530), (65, 1111168), (80, 902824), (104, 694480), (128, 564265), (130, 555584), (160, 451412), (208, 347240), (260, 277792), (320, 225706), (416, 173620), (520, 138896), (640, 112853), (832, 86810), (1040, 69448), (1664, 43405), (2080, 34724), (4160, 17362), (8320, 8681)]