320580

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{137}}^1$

素因数の和:165

約数の個数: 72

約数和(自身を含む): 1054872

約数和(自身を除く): 734292

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 30, 36, 39, 45, 52, 60, 65, 78, 90, 117, 130, 137, 156, 180, 195, 234, 260, 274, 390, 411, 468, 548, 585, 685, 780, 822, 1170, 1233, 1370, 1644, 1781, 2055, 2340, 2466, 2740, 3562, 4110, 4932, 5343, 6165, 7124, 8220, 8905, 10686, 12330, 16029, 17810, 21372, 24660, 26715, 32058, 35620, 53430, 64116, 80145, 106860, 160290, 320580]

約数ペア:

[(1, 320580), (2, 160290), (3, 106860), (4, 80145), (5, 64116), (6, 53430), (9, 35620), (10, 32058), (12, 26715), (13, 24660), (15, 21372), (18, 17810), (20, 16029), (26, 12330), (30, 10686), (36, 8905), (39, 8220), (45, 7124), (52, 6165), (60, 5343), (65, 4932), (78, 4110), (90, 3562), (117, 2740), (130, 2466), (137, 2340), (156, 2055), (180, 1781), (195, 1644), (234, 1370), (260, 1233), (274, 1170), (390, 822), (411, 780), (468, 685), (548, 585)]