128445400

素因数分解:

$2^3\times 5^2\times {\mathrm{31}}^1\times {\mathrm{20717}}^1$

素因数の和:20764

約数の個数: 48

約数和(自身を含む): 308283840

約数和(自身を除く): 179838440

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 31, 40, 50, 62, 100, 124, 155, 200, 248, 310, 620, 775, 1240, 1550, 3100, 6200, 20717, 41434, 82868, 103585, 165736, 207170, 414340, 517925, 642227, 828680, 1035850, 1284454, 2071700, 2568908, 3211135, 4143400, 5137816, 6422270, 12844540, 16055675, 25689080, 32111350, 64222700, 128445400]

約数ペア:

[(1, 128445400), (2, 64222700), (4, 32111350), (5, 25689080), (8, 16055675), (10, 12844540), (20, 6422270), (25, 5137816), (31, 4143400), (40, 3211135), (50, 2568908), (62, 2071700), (100, 1284454), (124, 1035850), (155, 828680), (200, 642227), (248, 517925), (310, 414340), (620, 207170), (775, 165736), (1240, 103585), (1550, 82868), (3100, 41434), (6200, 20717)]