210909500

素因数分解:

$2^2\times 5^3\times {\mathrm{19}}^1\times {\mathrm{149}}^2$

素因数の和:336

約数の個数: 72

約数和(自身を含む): 488145840

約数和(自身を除く): 277236340

約数列:

[1, 2, 4, 5, 10, 19, 20, 25, 38, 50, 76, 95, 100, 125, 149, 190, 250, 298, 380, 475, 500, 596, 745, 950, 1490, 1900, 2375, 2831, 2980, 3725, 4750, 5662, 7450, 9500, 11324, 14155, 14900, 18625, 22201, 28310, 37250, 44402, 56620, 70775, 74500, 88804, 111005, 141550, 222010, 283100, 353875, 421819, 444020, 555025, 707750, 843638, 1110050, 1415500, 1687276, 2109095, 2220100, 2775125, 4218190, 5550250, 8436380, 10545475, 11100500, 21090950, 42181900, 52727375, 105454750, 210909500]

約数ペア:

[(1, 210909500), (2, 105454750), (4, 52727375), (5, 42181900), (10, 21090950), (19, 11100500), (20, 10545475), (25, 8436380), (38, 5550250), (50, 4218190), (76, 2775125), (95, 2220100), (100, 2109095), (125, 1687276), (149, 1415500), (190, 1110050), (250, 843638), (298, 707750), (380, 555025), (475, 444020), (500, 421819), (596, 353875), (745, 283100), (950, 222010), (1490, 141550), (1900, 111005), (2375, 88804), (2831, 74500), (2980, 70775), (3725, 56620), (4750, 44402), (5662, 37250), (7450, 28310), (9500, 22201), (11324, 18625), (14155, 14900)]