18278650

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{461}}^1$

素因数の和:547

約数の個数: 48

約数和(自身を含む): 37294488

約数和(自身を除く): 19015838

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 61, 65, 122, 130, 305, 325, 461, 610, 650, 793, 922, 1525, 1586, 2305, 3050, 3965, 4610, 5993, 7930, 11525, 11986, 19825, 23050, 28121, 29965, 39650, 56242, 59930, 140605, 149825, 281210, 299650, 365573, 703025, 731146, 1406050, 1827865, 3655730, 9139325, 18278650]

約数ペア:

[(1, 18278650), (2, 9139325), (5, 3655730), (10, 1827865), (13, 1406050), (25, 731146), (26, 703025), (50, 365573), (61, 299650), (65, 281210), (122, 149825), (130, 140605), (305, 59930), (325, 56242), (461, 39650), (610, 29965), (650, 28121), (793, 23050), (922, 19825), (1525, 11986), (1586, 11525), (2305, 7930), (3050, 5993), (3965, 4610)]