278937984

素因数分解:

$2^7\times 3^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{787}}^1$

素因数の和:888

約数の個数: 128

約数和(自身を含む): 810190080

約数和(自身を除く): 531252096

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 24, 26, 32, 39, 48, 52, 64, 71, 78, 96, 104, 128, 142, 156, 192, 208, 213, 284, 312, 384, 416, 426, 568, 624, 787, 832, 852, 923, 1136, 1248, 1574, 1664, 1704, 1846, 2272, 2361, 2496, 2769, 3148, 3408, 3692, 4544, 4722, 4992, 5538, 6296, 6816, 7384, 9088, 9444, 10231, 11076, 12592, 13632, 14768, 18888, 20462, 22152, 25184, 27264, 29536, 30693, 37776, 40924, 44304, 50368, 55877, 59072, 61386, 75552, 81848, 88608, 100736, 111754, 118144, 122772, 151104, 163696, 167631, 177216, 223508, 245544, 302208, 327392, 335262, 354432, 447016, 491088, 654784, 670524, 726401, 894032, 982176, 1309568, 1341048, 1452802, 1788064, 1964352, 2179203, 2682096, 2905604, 3576128, 3928704, 4358406, 5364192, 5811208, 7152256, 8716812, 10728384, 11622416, 17433624, 21456768, 23244832, 34867248, 46489664, 69734496, 92979328, 139468992, 278937984]

約数ペア:

[(1, 278937984), (2, 139468992), (3, 92979328), (4, 69734496), (6, 46489664), (8, 34867248), (12, 23244832), (13, 21456768), (16, 17433624), (24, 11622416), (26, 10728384), (32, 8716812), (39, 7152256), (48, 5811208), (52, 5364192), (64, 4358406), (71, 3928704), (78, 3576128), (96, 2905604), (104, 2682096), (128, 2179203), (142, 1964352), (156, 1788064), (192, 1452802), (208, 1341048), (213, 1309568), (284, 982176), (312, 894032), (384, 726401), (416, 670524), (426, 654784), (568, 491088), (624, 447016), (787, 354432), (832, 335262), (852, 327392), (923, 302208), (1136, 245544), (1248, 223508), (1574, 177216), (1664, 167631), (1704, 163696), (1846, 151104), (2272, 122772), (2361, 118144), (2496, 111754), (2769, 100736), (3148, 88608), (3408, 81848), (3692, 75552), (4544, 61386), (4722, 59072), (4992, 55877), (5538, 50368), (6296, 44304), (6816, 40924), (7384, 37776), (9088, 30693), (9444, 29536), (10231, 27264), (11076, 25184), (12592, 22152), (13632, 20462), (14768, 18888)]