51731900

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{131}}^1\times {\mathrm{359}}^1$

素因数の和:515

約数の個数: 72

約数和(自身を含む): 123742080

約数和(自身を除く): 72010180

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 44, 50, 55, 100, 110, 131, 220, 262, 275, 359, 524, 550, 655, 718, 1100, 1310, 1436, 1441, 1795, 2620, 2882, 3275, 3590, 3949, 5764, 6550, 7180, 7205, 7898, 8975, 13100, 14410, 15796, 17950, 19745, 28820, 35900, 36025, 39490, 47029, 72050, 78980, 94058, 98725, 144100, 188116, 197450, 235145, 394900, 470290, 517319, 940580, 1034638, 1175725, 2069276, 2351450, 2586595, 4702900, 5173190, 10346380, 12932975, 25865950, 51731900]

約数ペア:

[(1, 51731900), (2, 25865950), (4, 12932975), (5, 10346380), (10, 5173190), (11, 4702900), (20, 2586595), (22, 2351450), (25, 2069276), (44, 1175725), (50, 1034638), (55, 940580), (100, 517319), (110, 470290), (131, 394900), (220, 235145), (262, 197450), (275, 188116), (359, 144100), (524, 98725), (550, 94058), (655, 78980), (718, 72050), (1100, 47029), (1310, 39490), (1436, 36025), (1441, 35900), (1795, 28820), (2620, 19745), (2882, 17950), (3275, 15796), (3590, 14410), (3949, 13100), (5764, 8975), (6550, 7898), (7180, 7205)]