19840379920

素因数分解:

$2^4\times 5^1\times {\mathrm{2503}}^1\times {\mathrm{99083}}^1$

素因数の和:101599

約数の個数: 40

約数和(自身を含む): 46147778496

約数和(自身を除く): 26307398576

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2503, 5006, 10012, 12515, 20024, 25030, 40048, 50060, 99083, 100120, 198166, 200240, 396332, 495415, 792664, 990830, 1585328, 1981660, 3963320, 7926640, 248004749, 496009498, 992018996, 1240023745, 1984037992, 2480047490, 3968075984, 4960094980, 9920189960, 19840379920]

約数ペア:

[(1, 19840379920), (2, 9920189960), (4, 4960094980), (5, 3968075984), (8, 2480047490), (10, 1984037992), (16, 1240023745), (20, 992018996), (40, 496009498), (80, 248004749), (2503, 7926640), (5006, 3963320), (10012, 1981660), (12515, 1585328), (20024, 990830), (25030, 792664), (40048, 495415), (50060, 396332), (99083, 200240), (100120, 198166)]