31987280

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{30757}}^1$

素因数の和:30783

約数の個数: 40

約数和(自身を含む): 80093832

約数和(自身を除く): 48106552

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 30757, 61514, 123028, 153785, 246056, 307570, 399841, 492112, 615140, 799682, 1230280, 1599364, 1999205, 2460560, 3198728, 3998410, 6397456, 7996820, 15993640, 31987280]

約数ペア:

[(1, 31987280), (2, 15993640), (4, 7996820), (5, 6397456), (8, 3998410), (10, 3198728), (13, 2460560), (16, 1999205), (20, 1599364), (26, 1230280), (40, 799682), (52, 615140), (65, 492112), (80, 399841), (104, 307570), (130, 246056), (208, 153785), (260, 123028), (520, 61514), (1040, 30757)]