205428240

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{285317}}^1$

素因数の和:285336

約数の個数: 60

約数和(自身を含む): 689898924

約数和(自身を除く): 484470684

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 180, 240, 360, 720, 285317, 570634, 855951, 1141268, 1426585, 1711902, 2282536, 2567853, 2853170, 3423804, 4279755, 4565072, 5135706, 5706340, 6847608, 8559510, 10271412, 11412680, 12839265, 13695216, 17119020, 20542824, 22825360, 25678530, 34238040, 41085648, 51357060, 68476080, 102714120, 205428240]

約数ペア:

[(1, 205428240), (2, 102714120), (3, 68476080), (4, 51357060), (5, 41085648), (6, 34238040), (8, 25678530), (9, 22825360), (10, 20542824), (12, 17119020), (15, 13695216), (16, 12839265), (18, 11412680), (20, 10271412), (24, 8559510), (30, 6847608), (36, 5706340), (40, 5135706), (45, 4565072), (48, 4279755), (60, 3423804), (72, 2853170), (80, 2567853), (90, 2282536), (120, 1711902), (144, 1426585), (180, 1141268), (240, 855951), (360, 570634), (720, 285317)]