20757888

素因数分解:

$2^7\times 3^2\times {\mathrm{37}}^1\times {\mathrm{487}}^1$

素因数の和:544

約数の個数: 96

約数和(自身を含む): 61473360

約数和(自身を除く): 40715472

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 32, 36, 37, 48, 64, 72, 74, 96, 111, 128, 144, 148, 192, 222, 288, 296, 333, 384, 444, 487, 576, 592, 666, 888, 974, 1152, 1184, 1332, 1461, 1776, 1948, 2368, 2664, 2922, 3552, 3896, 4383, 4736, 5328, 5844, 7104, 7792, 8766, 10656, 11688, 14208, 15584, 17532, 18019, 21312, 23376, 31168, 35064, 36038, 42624, 46752, 54057, 62336, 70128, 72076, 93504, 108114, 140256, 144152, 162171, 187008, 216228, 280512, 288304, 324342, 432456, 561024, 576608, 648684, 864912, 1153216, 1297368, 1729824, 2306432, 2594736, 3459648, 5189472, 6919296, 10378944, 20757888]

約数ペア:

[(1, 20757888), (2, 10378944), (3, 6919296), (4, 5189472), (6, 3459648), (8, 2594736), (9, 2306432), (12, 1729824), (16, 1297368), (18, 1153216), (24, 864912), (32, 648684), (36, 576608), (37, 561024), (48, 432456), (64, 324342), (72, 288304), (74, 280512), (96, 216228), (111, 187008), (128, 162171), (144, 144152), (148, 140256), (192, 108114), (222, 93504), (288, 72076), (296, 70128), (333, 62336), (384, 54057), (444, 46752), (487, 42624), (576, 36038), (592, 35064), (666, 31168), (888, 23376), (974, 21312), (1152, 18019), (1184, 17532), (1332, 15584), (1461, 14208), (1776, 11688), (1948, 10656), (2368, 8766), (2664, 7792), (2922, 7104), (3552, 5844), (3896, 5328), (4383, 4736)]