131012980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{49253}}^1$

素因数の和:49288

約数の個数: 48

約数和(自身を含む): 330986880

約数和(自身を除く): 199973900

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 28, 35, 38, 70, 76, 95, 133, 140, 190, 266, 380, 532, 665, 1330, 2660, 49253, 98506, 197012, 246265, 344771, 492530, 689542, 935807, 985060, 1379084, 1723855, 1871614, 3447710, 3743228, 4679035, 6550649, 6895420, 9358070, 13101298, 18716140, 26202596, 32753245, 65506490, 131012980]

約数ペア:

[(1, 131012980), (2, 65506490), (4, 32753245), (5, 26202596), (7, 18716140), (10, 13101298), (14, 9358070), (19, 6895420), (20, 6550649), (28, 4679035), (35, 3743228), (38, 3447710), (70, 1871614), (76, 1723855), (95, 1379084), (133, 985060), (140, 935807), (190, 689542), (266, 492530), (380, 344771), (532, 246265), (665, 197012), (1330, 98506), (2660, 49253)]