64767760

素因数分解:

$2^4\times 5^1\times {\mathrm{37}}^1\times {\mathrm{21881}}^1$

素因数の和:21931

約数の個数: 40

約数和(自身を含む): 154661976

約数和(自身を除く): 89894216

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 37, 40, 74, 80, 148, 185, 296, 370, 592, 740, 1480, 2960, 21881, 43762, 87524, 109405, 175048, 218810, 350096, 437620, 809597, 875240, 1619194, 1750480, 3238388, 4047985, 6476776, 8095970, 12953552, 16191940, 32383880, 64767760]

約数ペア:

[(1, 64767760), (2, 32383880), (4, 16191940), (5, 12953552), (8, 8095970), (10, 6476776), (16, 4047985), (20, 3238388), (37, 1750480), (40, 1619194), (74, 875240), (80, 809597), (148, 437620), (185, 350096), (296, 218810), (370, 175048), (592, 109405), (740, 87524), (1480, 43762), (2960, 21881)]