26581360

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{419}}^1$

素因数の和:506

約数の個数: 80

約数和(自身を含む): 67808160

約数和(自身を除く): 41226800

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 61, 65, 80, 104, 122, 130, 208, 244, 260, 305, 419, 488, 520, 610, 793, 838, 976, 1040, 1220, 1586, 1676, 2095, 2440, 3172, 3352, 3965, 4190, 4880, 5447, 6344, 6704, 7930, 8380, 10894, 12688, 15860, 16760, 21788, 25559, 27235, 31720, 33520, 43576, 51118, 54470, 63440, 87152, 102236, 108940, 127795, 204472, 217880, 255590, 332267, 408944, 435760, 511180, 664534, 1022360, 1329068, 1661335, 2044720, 2658136, 3322670, 5316272, 6645340, 13290680, 26581360]

約数ペア:

[(1, 26581360), (2, 13290680), (4, 6645340), (5, 5316272), (8, 3322670), (10, 2658136), (13, 2044720), (16, 1661335), (20, 1329068), (26, 1022360), (40, 664534), (52, 511180), (61, 435760), (65, 408944), (80, 332267), (104, 255590), (122, 217880), (130, 204472), (208, 127795), (244, 108940), (260, 102236), (305, 87152), (419, 63440), (488, 54470), (520, 51118), (610, 43576), (793, 33520), (838, 31720), (976, 27235), (1040, 25559), (1220, 21788), (1586, 16760), (1676, 15860), (2095, 12688), (2440, 10894), (3172, 8380), (3352, 7930), (3965, 6704), (4190, 6344), (4880, 5447)]