18812300

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{499}}^1$

素因数の和:555

約数の個数: 72

約数和(自身を含む): 45570000

約数和(自身を除く): 26757700

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 29, 50, 52, 58, 65, 100, 116, 130, 145, 260, 290, 325, 377, 499, 580, 650, 725, 754, 998, 1300, 1450, 1508, 1885, 1996, 2495, 2900, 3770, 4990, 6487, 7540, 9425, 9980, 12475, 12974, 14471, 18850, 24950, 25948, 28942, 32435, 37700, 49900, 57884, 64870, 72355, 129740, 144710, 162175, 188123, 289420, 324350, 361775, 376246, 648700, 723550, 752492, 940615, 1447100, 1881230, 3762460, 4703075, 9406150, 18812300]

約数ペア:

[(1, 18812300), (2, 9406150), (4, 4703075), (5, 3762460), (10, 1881230), (13, 1447100), (20, 940615), (25, 752492), (26, 723550), (29, 648700), (50, 376246), (52, 361775), (58, 324350), (65, 289420), (100, 188123), (116, 162175), (130, 144710), (145, 129740), (260, 72355), (290, 64870), (325, 57884), (377, 49900), (499, 37700), (580, 32435), (650, 28942), (725, 25948), (754, 24950), (998, 18850), (1300, 14471), (1450, 12974), (1508, 12475), (1885, 9980), (1996, 9425), (2495, 7540), (2900, 6487), (3770, 4990)]