20582032640

素因数分解:

$2^8\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1236901}}^1$

素因数の和:1236935

約数の個数: 72

約数和(自身を含む): 53092781448

約数和(自身を除く): 32510748808

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, 1236901, 2473802, 4947604, 6184505, 9895208, 12369010, 16079713, 19790416, 24738020, 32159426, 39580832, 49476040, 64318852, 79161664, 80398565, 98952080, 128637704, 158323328, 160797130, 197904160, 257275408, 316646656, 321594260, 395808320, 514550816, 643188520, 791616640, 1029101632, 1286377040, 1583233280, 2058203264, 2572754080, 4116406528, 5145508160, 10291016320, 20582032640]

約数ペア:

[(1, 20582032640), (2, 10291016320), (4, 5145508160), (5, 4116406528), (8, 2572754080), (10, 2058203264), (13, 1583233280), (16, 1286377040), (20, 1029101632), (26, 791616640), (32, 643188520), (40, 514550816), (52, 395808320), (64, 321594260), (65, 316646656), (80, 257275408), (104, 197904160), (128, 160797130), (130, 158323328), (160, 128637704), (208, 98952080), (256, 80398565), (260, 79161664), (320, 64318852), (416, 49476040), (520, 39580832), (640, 32159426), (832, 24738020), (1040, 19790416), (1280, 16079713), (1664, 12369010), (2080, 9895208), (3328, 6184505), (4160, 4947604), (8320, 2473802), (16640, 1236901)]