1649098720

素因数分解:

$2^5\times 5^1\times {\mathrm{41}}^1\times {\mathrm{251387}}^1$

素因数の和:251443

約数の個数: 48

約数和(自身を含む): 3991035888

約数和(自身を除く): 2341937168

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 41, 80, 82, 160, 164, 205, 328, 410, 656, 820, 1312, 1640, 3280, 6560, 251387, 502774, 1005548, 1256935, 2011096, 2513870, 4022192, 5027740, 8044384, 10055480, 10306867, 20110960, 20613734, 40221920, 41227468, 51534335, 82454936, 103068670, 164909872, 206137340, 329819744, 412274680, 824549360, 1649098720]

約数ペア:

[(1, 1649098720), (2, 824549360), (4, 412274680), (5, 329819744), (8, 206137340), (10, 164909872), (16, 103068670), (20, 82454936), (32, 51534335), (40, 41227468), (41, 40221920), (80, 20613734), (82, 20110960), (160, 10306867), (164, 10055480), (205, 8044384), (328, 5027740), (410, 4022192), (656, 2513870), (820, 2011096), (1312, 1256935), (1640, 1005548), (3280, 502774), (6560, 251387)]