66942800

素因数分解:

$2^4\times 5^2\times {\mathrm{101}}^1\times {\mathrm{1657}}^1$

素因数の和:1776

約数の個数: 60

約数和(自身を含む): 162520476

約数和(自身を除く): 95577676

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 101, 200, 202, 400, 404, 505, 808, 1010, 1616, 1657, 2020, 2525, 3314, 4040, 5050, 6628, 8080, 8285, 10100, 13256, 16570, 20200, 26512, 33140, 40400, 41425, 66280, 82850, 132560, 165700, 167357, 331400, 334714, 662800, 669428, 836785, 1338856, 1673570, 2677712, 3347140, 4183925, 6694280, 8367850, 13388560, 16735700, 33471400, 66942800]

約数ペア:

[(1, 66942800), (2, 33471400), (4, 16735700), (5, 13388560), (8, 8367850), (10, 6694280), (16, 4183925), (20, 3347140), (25, 2677712), (40, 1673570), (50, 1338856), (80, 836785), (100, 669428), (101, 662800), (200, 334714), (202, 331400), (400, 167357), (404, 165700), (505, 132560), (808, 82850), (1010, 66280), (1616, 41425), (1657, 40400), (2020, 33140), (2525, 26512), (3314, 20200), (4040, 16570), (5050, 13256), (6628, 10100), (8080, 8285)]