18369020

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{103}}^1\times {\mathrm{241}}^1$

素因数の和:390

約数の個数: 48

約数和(自身を含む): 40168128

約数和(自身を除く): 21799108

約数列:

[1, 2, 4, 5, 10, 20, 37, 74, 103, 148, 185, 206, 241, 370, 412, 482, 515, 740, 964, 1030, 1205, 2060, 2410, 3811, 4820, 7622, 8917, 15244, 17834, 19055, 24823, 35668, 38110, 44585, 49646, 76220, 89170, 99292, 124115, 178340, 248230, 496460, 918451, 1836902, 3673804, 4592255, 9184510, 18369020]

約数ペア:

[(1, 18369020), (2, 9184510), (4, 4592255), (5, 3673804), (10, 1836902), (20, 918451), (37, 496460), (74, 248230), (103, 178340), (148, 124115), (185, 99292), (206, 89170), (241, 76220), (370, 49646), (412, 44585), (482, 38110), (515, 35668), (740, 24823), (964, 19055), (1030, 17834), (1205, 15244), (2060, 8917), (2410, 7622), (3811, 4820)]