20900650

素因数分解:

$2^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{367}}^1$

素因数の和:463

約数の個数: 48

約数和(自身を含む): 41890176

約数和(自身を除く): 20989526

約数列:

[1, 2, 5, 10, 17, 25, 34, 50, 67, 85, 134, 170, 335, 367, 425, 670, 734, 850, 1139, 1675, 1835, 2278, 3350, 3670, 5695, 6239, 9175, 11390, 12478, 18350, 24589, 28475, 31195, 49178, 56950, 62390, 122945, 155975, 245890, 311950, 418013, 614725, 836026, 1229450, 2090065, 4180130, 10450325, 20900650]

約数ペア:

[(1, 20900650), (2, 10450325), (5, 4180130), (10, 2090065), (17, 1229450), (25, 836026), (34, 614725), (50, 418013), (67, 311950), (85, 245890), (134, 155975), (170, 122945), (335, 62390), (367, 56950), (425, 49178), (670, 31195), (734, 28475), (850, 24589), (1139, 18350), (1675, 12478), (1835, 11390), (2278, 9175), (3350, 6239), (3670, 5695)]