80138480

素因数分解:

$2^4\times 5^1\times {\mathrm{311}}^1\times {\mathrm{3221}}^1$

素因数の和:3545

約数の個数: 40

約数和(自身を含む): 186979104

約数和(自身を除く): 106840624

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 311, 622, 1244, 1555, 2488, 3110, 3221, 4976, 6220, 6442, 12440, 12884, 16105, 24880, 25768, 32210, 51536, 64420, 128840, 257680, 1001731, 2003462, 4006924, 5008655, 8013848, 10017310, 16027696, 20034620, 40069240, 80138480]

約数ペア:

[(1, 80138480), (2, 40069240), (4, 20034620), (5, 16027696), (8, 10017310), (10, 8013848), (16, 5008655), (20, 4006924), (40, 2003462), (80, 1001731), (311, 257680), (622, 128840), (1244, 64420), (1555, 51536), (2488, 32210), (3110, 25768), (3221, 24880), (4976, 16105), (6220, 12884), (6442, 12440)]