20070851840

素因数分解:

$2^8\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1206181}}^1$

素因数の和:1206215

約数の個数: 72

約数和(自身を含む): 51774156168

約数和(自身を除く): 31703304328

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 128, 130, 160, 208, 256, 260, 320, 416, 520, 640, 832, 1040, 1280, 1664, 2080, 3328, 4160, 8320, 16640, 1206181, 2412362, 4824724, 6030905, 9649448, 12061810, 15680353, 19298896, 24123620, 31360706, 38597792, 48247240, 62721412, 77195584, 78401765, 96494480, 125442824, 154391168, 156803530, 192988960, 250885648, 308782336, 313607060, 385977920, 501771296, 627214120, 771955840, 1003542592, 1254428240, 1543911680, 2007085184, 2508856480, 4014170368, 5017712960, 10035425920, 20070851840]

約数ペア:

[(1, 20070851840), (2, 10035425920), (4, 5017712960), (5, 4014170368), (8, 2508856480), (10, 2007085184), (13, 1543911680), (16, 1254428240), (20, 1003542592), (26, 771955840), (32, 627214120), (40, 501771296), (52, 385977920), (64, 313607060), (65, 308782336), (80, 250885648), (104, 192988960), (128, 156803530), (130, 154391168), (160, 125442824), (208, 96494480), (256, 78401765), (260, 77195584), (320, 62721412), (416, 48247240), (520, 38597792), (640, 31360706), (832, 24123620), (1040, 19298896), (1280, 15680353), (1664, 12061810), (2080, 9649448), (3328, 6030905), (4160, 4824724), (8320, 2412362), (16640, 1206181)]