12942500

素因数分解:

$2^2\times 5^4\times {\mathrm{31}}^1\times {\mathrm{167}}^1$

素因数の和:222

約数の個数: 60

約数和(自身を含む): 29390592

約数和(自身を除く): 16448092

約数列:

[1, 2, 4, 5, 10, 20, 25, 31, 50, 62, 100, 124, 125, 155, 167, 250, 310, 334, 500, 620, 625, 668, 775, 835, 1250, 1550, 1670, 2500, 3100, 3340, 3875, 4175, 5177, 7750, 8350, 10354, 15500, 16700, 19375, 20708, 20875, 25885, 38750, 41750, 51770, 77500, 83500, 103540, 104375, 129425, 208750, 258850, 417500, 517700, 647125, 1294250, 2588500, 3235625, 6471250, 12942500]

約数ペア:

[(1, 12942500), (2, 6471250), (4, 3235625), (5, 2588500), (10, 1294250), (20, 647125), (25, 517700), (31, 417500), (50, 258850), (62, 208750), (100, 129425), (124, 104375), (125, 103540), (155, 83500), (167, 77500), (250, 51770), (310, 41750), (334, 38750), (500, 25885), (620, 20875), (625, 20708), (668, 19375), (775, 16700), (835, 15500), (1250, 10354), (1550, 8350), (1670, 7750), (2500, 5177), (3100, 4175), (3340, 3875)]