280894744

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{109}}^1\times {\mathrm{349}}^1$

素因数の和:548

約数の個数: 64

約数和(自身を含む): 582120000

約数和(自身を除く): 301225256

約数列:

[1, 2, 4, 8, 13, 26, 52, 71, 104, 109, 142, 218, 284, 349, 436, 568, 698, 872, 923, 1396, 1417, 1846, 2792, 2834, 3692, 4537, 5668, 7384, 7739, 9074, 11336, 15478, 18148, 24779, 30956, 36296, 38041, 49558, 61912, 76082, 99116, 100607, 152164, 198232, 201214, 304328, 322127, 402428, 494533, 644254, 804856, 989066, 1288508, 1978132, 2577016, 2700911, 3956264, 5401822, 10803644, 21607288, 35111843, 70223686, 140447372, 280894744]

約数ペア:

[(1, 280894744), (2, 140447372), (4, 70223686), (8, 35111843), (13, 21607288), (26, 10803644), (52, 5401822), (71, 3956264), (104, 2700911), (109, 2577016), (142, 1978132), (218, 1288508), (284, 989066), (349, 804856), (436, 644254), (568, 494533), (698, 402428), (872, 322127), (923, 304328), (1396, 201214), (1417, 198232), (1846, 152164), (2792, 100607), (2834, 99116), (3692, 76082), (4537, 61912), (5668, 49558), (7384, 38041), (7739, 36296), (9074, 30956), (11336, 24779), (15478, 18148)]