51151820

素因数分解:

$2^2\times 5^1\times {\mathrm{59}}^1\times {\mathrm{67}}^1\times {\mathrm{647}}^1$

素因数の和:782

約数の個数: 48

約数和(自身を含む): 111041280

約数和(自身を除く): 59889460

約数列:

[1, 2, 4, 5, 10, 20, 59, 67, 118, 134, 236, 268, 295, 335, 590, 647, 670, 1180, 1294, 1340, 2588, 3235, 3953, 6470, 7906, 12940, 15812, 19765, 38173, 39530, 43349, 76346, 79060, 86698, 152692, 173396, 190865, 216745, 381730, 433490, 763460, 866980, 2557591, 5115182, 10230364, 12787955, 25575910, 51151820]

約数ペア:

[(1, 51151820), (2, 25575910), (4, 12787955), (5, 10230364), (10, 5115182), (20, 2557591), (59, 866980), (67, 763460), (118, 433490), (134, 381730), (236, 216745), (268, 190865), (295, 173396), (335, 152692), (590, 86698), (647, 79060), (670, 76346), (1180, 43349), (1294, 39530), (1340, 38173), (2588, 19765), (3235, 15812), (3953, 12940), (6470, 7906)]