290468750

素因数分解:

$2^1\times 5^7\times {\mathrm{11}}^1\times {\mathrm{13}}^2$

素因数の和:74

約数の個数: 96

約数和(自身を含む): 643357728

約数和(自身を除く): 352888978

約数列:

[1, 2, 5, 10, 11, 13, 22, 25, 26, 50, 55, 65, 110, 125, 130, 143, 169, 250, 275, 286, 325, 338, 550, 625, 650, 715, 845, 1250, 1375, 1430, 1625, 1690, 1859, 2750, 3125, 3250, 3575, 3718, 4225, 6250, 6875, 7150, 8125, 8450, 9295, 13750, 15625, 16250, 17875, 18590, 21125, 31250, 34375, 35750, 40625, 42250, 46475, 68750, 78125, 81250, 89375, 92950, 105625, 156250, 171875, 178750, 203125, 211250, 232375, 343750, 406250, 446875, 464750, 528125, 859375, 893750, 1015625, 1056250, 1161875, 1718750, 2031250, 2234375, 2323750, 2640625, 4468750, 5281250, 5809375, 11171875, 11618750, 13203125, 22343750, 26406250, 29046875, 58093750, 145234375, 290468750]

約数ペア:

[(1, 290468750), (2, 145234375), (5, 58093750), (10, 29046875), (11, 26406250), (13, 22343750), (22, 13203125), (25, 11618750), (26, 11171875), (50, 5809375), (55, 5281250), (65, 4468750), (110, 2640625), (125, 2323750), (130, 2234375), (143, 2031250), (169, 1718750), (250, 1161875), (275, 1056250), (286, 1015625), (325, 893750), (338, 859375), (550, 528125), (625, 464750), (650, 446875), (715, 406250), (845, 343750), (1250, 232375), (1375, 211250), (1430, 203125), (1625, 178750), (1690, 171875), (1859, 156250), (2750, 105625), (3125, 92950), (3250, 89375), (3575, 81250), (3718, 78125), (4225, 68750), (6250, 46475), (6875, 42250), (7150, 40625), (8125, 35750), (8450, 34375), (9295, 31250), (13750, 21125), (15625, 18590), (16250, 17875)]