388771500

素因数分解:

$2^2\times 3^1\times 5^3\times {\mathrm{13}}^1\times {\mathrm{19937}}^1$

素因数の和:19972

約数の個数: 96

約数和(自身を含む): 1219248576

約数和(自身を除く): 830477076

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 25, 26, 30, 39, 50, 52, 60, 65, 75, 78, 100, 125, 130, 150, 156, 195, 250, 260, 300, 325, 375, 390, 500, 650, 750, 780, 975, 1300, 1500, 1625, 1950, 3250, 3900, 4875, 6500, 9750, 19500, 19937, 39874, 59811, 79748, 99685, 119622, 199370, 239244, 259181, 299055, 398740, 498425, 518362, 598110, 777543, 996850, 1036724, 1196220, 1295905, 1495275, 1555086, 1993700, 2492125, 2591810, 2990550, 3110172, 3887715, 4984250, 5183620, 5981100, 6479525, 7476375, 7775430, 9968500, 12959050, 14952750, 15550860, 19438575, 25918100, 29905500, 32397625, 38877150, 64795250, 77754300, 97192875, 129590500, 194385750, 388771500]

約数ペア:

[(1, 388771500), (2, 194385750), (3, 129590500), (4, 97192875), (5, 77754300), (6, 64795250), (10, 38877150), (12, 32397625), (13, 29905500), (15, 25918100), (20, 19438575), (25, 15550860), (26, 14952750), (30, 12959050), (39, 9968500), (50, 7775430), (52, 7476375), (60, 6479525), (65, 5981100), (75, 5183620), (78, 4984250), (100, 3887715), (125, 3110172), (130, 2990550), (150, 2591810), (156, 2492125), (195, 1993700), (250, 1555086), (260, 1495275), (300, 1295905), (325, 1196220), (375, 1036724), (390, 996850), (500, 777543), (650, 598110), (750, 518362), (780, 498425), (975, 398740), (1300, 299055), (1500, 259181), (1625, 239244), (1950, 199370), (3250, 119622), (3900, 99685), (4875, 79748), (6500, 59811), (9750, 39874), (19500, 19937)]