19879920

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{27611}}^1$

素因数の和:27630

約数の個数: 60

約数和(自身を含む): 66765816

約数和(自身を除く): 46885896

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 180, 240, 360, 720, 27611, 55222, 82833, 110444, 138055, 165666, 220888, 248499, 276110, 331332, 414165, 441776, 496998, 552220, 662664, 828330, 993996, 1104440, 1242495, 1325328, 1656660, 1987992, 2208880, 2484990, 3313320, 3975984, 4969980, 6626640, 9939960, 19879920]

約数ペア:

[(1, 19879920), (2, 9939960), (3, 6626640), (4, 4969980), (5, 3975984), (6, 3313320), (8, 2484990), (9, 2208880), (10, 1987992), (12, 1656660), (15, 1325328), (16, 1242495), (18, 1104440), (20, 993996), (24, 828330), (30, 662664), (36, 552220), (40, 496998), (45, 441776), (48, 414165), (60, 331332), (72, 276110), (80, 248499), (90, 220888), (120, 165666), (144, 138055), (180, 110444), (240, 82833), (360, 55222), (720, 27611)]