81398432

素因数分解:

$2^5\times {\mathrm{19}}^1\times {\mathrm{83}}^1\times {\mathrm{1613}}^1$

素因数の和:1725

約数の個数: 48

約数和(自身を含む): 170825760

約数和(自身を除く): 89427328

約数列:

[1, 2, 4, 8, 16, 19, 32, 38, 76, 83, 152, 166, 304, 332, 608, 664, 1328, 1577, 1613, 2656, 3154, 3226, 6308, 6452, 12616, 12904, 25232, 25808, 30647, 50464, 51616, 61294, 122588, 133879, 245176, 267758, 490352, 535516, 980704, 1071032, 2142064, 2543701, 4284128, 5087402, 10174804, 20349608, 40699216, 81398432]

約数ペア:

[(1, 81398432), (2, 40699216), (4, 20349608), (8, 10174804), (16, 5087402), (19, 4284128), (32, 2543701), (38, 2142064), (76, 1071032), (83, 980704), (152, 535516), (166, 490352), (304, 267758), (332, 245176), (608, 133879), (664, 122588), (1328, 61294), (1577, 51616), (1613, 50464), (2656, 30647), (3154, 25808), (3226, 25232), (6308, 12904), (6452, 12616)]