27194920

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{97}}^1\times {\mathrm{163}}^1$

素因数の和:314

約数の個数: 64

約数和(自身を含む): 63645120

約数和(自身を除く): 36450200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 97, 163, 172, 194, 215, 326, 344, 388, 430, 485, 652, 776, 815, 860, 970, 1304, 1630, 1720, 1940, 3260, 3880, 4171, 6520, 7009, 8342, 14018, 15811, 16684, 20855, 28036, 31622, 33368, 35045, 41710, 56072, 63244, 70090, 79055, 83420, 126488, 140180, 158110, 166840, 280360, 316220, 632440, 679873, 1359746, 2719492, 3399365, 5438984, 6798730, 13597460, 27194920]

約数ペア:

[(1, 27194920), (2, 13597460), (4, 6798730), (5, 5438984), (8, 3399365), (10, 2719492), (20, 1359746), (40, 679873), (43, 632440), (86, 316220), (97, 280360), (163, 166840), (172, 158110), (194, 140180), (215, 126488), (326, 83420), (344, 79055), (388, 70090), (430, 63244), (485, 56072), (652, 41710), (776, 35045), (815, 33368), (860, 31622), (970, 28036), (1304, 20855), (1630, 16684), (1720, 15811), (1940, 14018), (3260, 8342), (3880, 7009), (4171, 6520)]