187395620

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{409}}^1\times {\mathrm{739}}^1$

素因数の和:1188

約数の個数: 48

約数和(自身を含む): 407769600

約数和(自身を除く): 220373980

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 409, 620, 739, 818, 1478, 1636, 2045, 2956, 3695, 4090, 7390, 8180, 12679, 14780, 22909, 25358, 45818, 50716, 63395, 91636, 114545, 126790, 229090, 253580, 302251, 458180, 604502, 1209004, 1511255, 3022510, 6045020, 9369781, 18739562, 37479124, 46848905, 93697810, 187395620]

約数ペア:

[(1, 187395620), (2, 93697810), (4, 46848905), (5, 37479124), (10, 18739562), (20, 9369781), (31, 6045020), (62, 3022510), (124, 1511255), (155, 1209004), (310, 604502), (409, 458180), (620, 302251), (739, 253580), (818, 229090), (1478, 126790), (1636, 114545), (2045, 91636), (2956, 63395), (3695, 50716), (4090, 45818), (7390, 25358), (8180, 22909), (12679, 14780)]