278317624

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{2309}}^1$

素因数の和:2408

約数の個数: 64

約数和(自身を含む): 601524000

約数和(自身を除く): 323206376

約数列:

[1, 2, 4, 8, 13, 19, 26, 38, 52, 61, 76, 104, 122, 152, 244, 247, 488, 494, 793, 988, 1159, 1586, 1976, 2309, 2318, 3172, 4618, 4636, 6344, 9236, 9272, 15067, 18472, 30017, 30134, 43871, 60034, 60268, 87742, 120068, 120536, 140849, 175484, 240136, 281698, 350968, 563396, 570323, 1126792, 1140646, 1831037, 2281292, 2676131, 3662074, 4562584, 5352262, 7324148, 10704524, 14648296, 21409048, 34789703, 69579406, 139158812, 278317624]

約数ペア:

[(1, 278317624), (2, 139158812), (4, 69579406), (8, 34789703), (13, 21409048), (19, 14648296), (26, 10704524), (38, 7324148), (52, 5352262), (61, 4562584), (76, 3662074), (104, 2676131), (122, 2281292), (152, 1831037), (244, 1140646), (247, 1126792), (488, 570323), (494, 563396), (793, 350968), (988, 281698), (1159, 240136), (1586, 175484), (1976, 140849), (2309, 120536), (2318, 120068), (3172, 87742), (4618, 60268), (4636, 60034), (6344, 43871), (9236, 30134), (9272, 30017), (15067, 18472)]