20165123100

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{239}}^1\times {\mathrm{281243}}^1$

素因数の和:281499

約数の個数: 72

約数和(自身を含む): 58588750080

約数和(自身を除く): 38423626980

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 25, 30, 50, 60, 75, 100, 150, 239, 300, 478, 717, 956, 1195, 1434, 2390, 2868, 3585, 4780, 5975, 7170, 11950, 14340, 17925, 23900, 35850, 71700, 281243, 562486, 843729, 1124972, 1406215, 1687458, 2812430, 3374916, 4218645, 5624860, 7031075, 8437290, 14062150, 16874580, 21093225, 28124300, 42186450, 67217077, 84372900, 134434154, 201651231, 268868308, 336085385, 403302462, 672170770, 806604924, 1008256155, 1344341540, 1680426925, 2016512310, 3360853850, 4033024620, 5041280775, 6721707700, 10082561550, 20165123100]

約数ペア:

[(1, 20165123100), (2, 10082561550), (3, 6721707700), (4, 5041280775), (5, 4033024620), (6, 3360853850), (10, 2016512310), (12, 1680426925), (15, 1344341540), (20, 1008256155), (25, 806604924), (30, 672170770), (50, 403302462), (60, 336085385), (75, 268868308), (100, 201651231), (150, 134434154), (239, 84372900), (300, 67217077), (478, 42186450), (717, 28124300), (956, 21093225), (1195, 16874580), (1434, 14062150), (2390, 8437290), (2868, 7031075), (3585, 5624860), (4780, 4218645), (5975, 3374916), (7170, 2812430), (11950, 1687458), (14340, 1406215), (17925, 1124972), (23900, 843729), (35850, 562486), (71700, 281243)]