78888720

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{257}}^1\times {\mathrm{1279}}^1$

素因数の和:1552

約数の個数: 80

約数和(自身を含む): 245698560

約数和(自身を除く): 166809840

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 257, 514, 771, 1028, 1279, 1285, 1542, 2056, 2558, 2570, 3084, 3837, 3855, 4112, 5116, 5140, 6168, 6395, 7674, 7710, 10232, 10280, 12336, 12790, 15348, 15420, 19185, 20464, 20560, 25580, 30696, 30840, 38370, 51160, 61392, 61680, 76740, 102320, 153480, 306960, 328703, 657406, 986109, 1314812, 1643515, 1972218, 2629624, 3287030, 3944436, 4930545, 5259248, 6574060, 7888872, 9861090, 13148120, 15777744, 19722180, 26296240, 39444360, 78888720]

約数ペア:

[(1, 78888720), (2, 39444360), (3, 26296240), (4, 19722180), (5, 15777744), (6, 13148120), (8, 9861090), (10, 7888872), (12, 6574060), (15, 5259248), (16, 4930545), (20, 3944436), (24, 3287030), (30, 2629624), (40, 1972218), (48, 1643515), (60, 1314812), (80, 986109), (120, 657406), (240, 328703), (257, 306960), (514, 153480), (771, 102320), (1028, 76740), (1279, 61680), (1285, 61392), (1542, 51160), (2056, 38370), (2558, 30840), (2570, 30696), (3084, 25580), (3837, 20560), (3855, 20464), (4112, 19185), (5116, 15420), (5140, 15348), (6168, 12790), (6395, 12336), (7674, 10280), (7710, 10232)]