63748750

素因数分解:

$2^1\times 5^4\times {\mathrm{13}}^1\times {\mathrm{3923}}^1$

素因数の和:3958

約数の個数: 40

約数和(自身を含む): 128715048

約数和(自身を除く): 64966298

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 125, 130, 250, 325, 625, 650, 1250, 1625, 3250, 3923, 7846, 8125, 16250, 19615, 39230, 50999, 98075, 101998, 196150, 254995, 490375, 509990, 980750, 1274975, 2451875, 2549950, 4903750, 6374875, 12749750, 31874375, 63748750]

約数ペア:

[(1, 63748750), (2, 31874375), (5, 12749750), (10, 6374875), (13, 4903750), (25, 2549950), (26, 2451875), (50, 1274975), (65, 980750), (125, 509990), (130, 490375), (250, 254995), (325, 196150), (625, 101998), (650, 98075), (1250, 50999), (1625, 39230), (3250, 19615), (3923, 16250), (7846, 8125)]