64783240

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{22811}}^1$

素因数の和:22893

約数の個数: 32

約数和(自身を含む): 147821760

約数和(自身を除く): 83038520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 284, 355, 568, 710, 1420, 2840, 22811, 45622, 91244, 114055, 182488, 228110, 456220, 912440, 1619581, 3239162, 6478324, 8097905, 12956648, 16195810, 32391620, 64783240]

約数ペア:

[(1, 64783240), (2, 32391620), (4, 16195810), (5, 12956648), (8, 8097905), (10, 6478324), (20, 3239162), (40, 1619581), (71, 912440), (142, 456220), (284, 228110), (355, 182488), (568, 114055), (710, 91244), (1420, 45622), (2840, 22811)]