20346560

素因数分解:

$2^6\times 5^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{73}}^1$

素因数の和:170

約数の個数: 112

約数和(自身を含む): 53681376

約数和(自身を除く): 33334816

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 67, 73, 80, 104, 130, 134, 146, 160, 208, 260, 268, 292, 320, 335, 365, 416, 520, 536, 584, 670, 730, 832, 871, 949, 1040, 1072, 1168, 1340, 1460, 1742, 1898, 2080, 2144, 2336, 2680, 2920, 3484, 3796, 4160, 4288, 4355, 4672, 4745, 4891, 5360, 5840, 6968, 7592, 8710, 9490, 9782, 10720, 11680, 13936, 15184, 17420, 18980, 19564, 21440, 23360, 24455, 27872, 30368, 34840, 37960, 39128, 48910, 55744, 60736, 63583, 69680, 75920, 78256, 97820, 127166, 139360, 151840, 156512, 195640, 254332, 278720, 303680, 313024, 317915, 391280, 508664, 635830, 782560, 1017328, 1271660, 1565120, 2034656, 2543320, 4069312, 5086640, 10173280, 20346560]

約数ペア:

[(1, 20346560), (2, 10173280), (4, 5086640), (5, 4069312), (8, 2543320), (10, 2034656), (13, 1565120), (16, 1271660), (20, 1017328), (26, 782560), (32, 635830), (40, 508664), (52, 391280), (64, 317915), (65, 313024), (67, 303680), (73, 278720), (80, 254332), (104, 195640), (130, 156512), (134, 151840), (146, 139360), (160, 127166), (208, 97820), (260, 78256), (268, 75920), (292, 69680), (320, 63583), (335, 60736), (365, 55744), (416, 48910), (520, 39128), (536, 37960), (584, 34840), (670, 30368), (730, 27872), (832, 24455), (871, 23360), (949, 21440), (1040, 19564), (1072, 18980), (1168, 17420), (1340, 15184), (1460, 13936), (1742, 11680), (1898, 10720), (2080, 9782), (2144, 9490), (2336, 8710), (2680, 7592), (2920, 6968), (3484, 5840), (3796, 5360), (4160, 4891), (4288, 4745), (4355, 4672)]