72814760

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{25639}}^1$

素因数の和:25721

約数の個数: 32

約数和(自身を含む): 166147200

約数和(自身を除く): 93332440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 284, 355, 568, 710, 1420, 2840, 25639, 51278, 102556, 128195, 205112, 256390, 512780, 1025560, 1820369, 3640738, 7281476, 9101845, 14562952, 18203690, 36407380, 72814760]

約数ペア:

[(1, 72814760), (2, 36407380), (4, 18203690), (5, 14562952), (8, 9101845), (10, 7281476), (20, 3640738), (40, 1820369), (71, 1025560), (142, 512780), (284, 256390), (355, 205112), (568, 128195), (710, 102556), (1420, 51278), (2840, 25639)]