248709180

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{127}}^2\times {\mathrm{257}}^1$

素因数の和:523

約数の個数: 72

約数和(自身を含む): 704643408

約数和(自身を除く): 455934228

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 127, 254, 257, 381, 508, 514, 635, 762, 771, 1028, 1270, 1285, 1524, 1542, 1905, 2540, 2570, 3084, 3810, 3855, 5140, 7620, 7710, 15420, 16129, 32258, 32639, 48387, 64516, 65278, 80645, 96774, 97917, 130556, 161290, 163195, 193548, 195834, 241935, 322580, 326390, 391668, 483870, 489585, 652780, 967740, 979170, 1958340, 4145153, 8290306, 12435459, 16580612, 20725765, 24870918, 41451530, 49741836, 62177295, 82903060, 124354590, 248709180]

約数ペア:

[(1, 248709180), (2, 124354590), (3, 82903060), (4, 62177295), (5, 49741836), (6, 41451530), (10, 24870918), (12, 20725765), (15, 16580612), (20, 12435459), (30, 8290306), (60, 4145153), (127, 1958340), (254, 979170), (257, 967740), (381, 652780), (508, 489585), (514, 483870), (635, 391668), (762, 326390), (771, 322580), (1028, 241935), (1270, 195834), (1285, 193548), (1524, 163195), (1542, 161290), (1905, 130556), (2540, 97917), (2570, 96774), (3084, 80645), (3810, 65278), (3855, 64516), (5140, 48387), (7620, 32639), (7710, 32258), (15420, 16129)]