317281250

素因数分解:

$2^1\times 5^6\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1$

素因数の和:127

約数の個数: 112

約数和(自身を含む): 708740928

約数和(自身を除く): 391459678

約数列:

[1, 2, 5, 10, 11, 13, 22, 25, 26, 50, 55, 65, 71, 110, 125, 130, 142, 143, 250, 275, 286, 325, 355, 550, 625, 650, 710, 715, 781, 923, 1250, 1375, 1430, 1562, 1625, 1775, 1846, 2750, 3125, 3250, 3550, 3575, 3905, 4615, 6250, 6875, 7150, 7810, 8125, 8875, 9230, 10153, 13750, 15625, 16250, 17750, 17875, 19525, 20306, 23075, 31250, 34375, 35750, 39050, 40625, 44375, 46150, 50765, 68750, 81250, 88750, 89375, 97625, 101530, 115375, 171875, 178750, 195250, 203125, 221875, 230750, 253825, 343750, 406250, 443750, 446875, 488125, 507650, 576875, 893750, 976250, 1109375, 1153750, 1269125, 2218750, 2234375, 2440625, 2538250, 2884375, 4468750, 4881250, 5768750, 6345625, 12203125, 12691250, 14421875, 24406250, 28843750, 31728125, 63456250, 158640625, 317281250]

約数ペア:

[(1, 317281250), (2, 158640625), (5, 63456250), (10, 31728125), (11, 28843750), (13, 24406250), (22, 14421875), (25, 12691250), (26, 12203125), (50, 6345625), (55, 5768750), (65, 4881250), (71, 4468750), (110, 2884375), (125, 2538250), (130, 2440625), (142, 2234375), (143, 2218750), (250, 1269125), (275, 1153750), (286, 1109375), (325, 976250), (355, 893750), (550, 576875), (625, 507650), (650, 488125), (710, 446875), (715, 443750), (781, 406250), (923, 343750), (1250, 253825), (1375, 230750), (1430, 221875), (1562, 203125), (1625, 195250), (1775, 178750), (1846, 171875), (2750, 115375), (3125, 101530), (3250, 97625), (3550, 89375), (3575, 88750), (3905, 81250), (4615, 68750), (6250, 50765), (6875, 46150), (7150, 44375), (7810, 40625), (8125, 39050), (8875, 35750), (9230, 34375), (10153, 31250), (13750, 23075), (15625, 20306), (16250, 19525), (17750, 17875)]