189760280

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{109}}^1\times {\mathrm{613}}^1$

素因数の和:804

約数の個数: 64

約数和(自身を含む): 437659200

約数和(自身を除く): 247898920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 109, 142, 218, 284, 355, 436, 545, 568, 613, 710, 872, 1090, 1226, 1420, 2180, 2452, 2840, 3065, 4360, 4904, 6130, 7739, 12260, 15478, 24520, 30956, 38695, 43523, 61912, 66817, 77390, 87046, 133634, 154780, 174092, 217615, 267268, 309560, 334085, 348184, 435230, 534536, 668170, 870460, 1336340, 1740920, 2672680, 4744007, 9488014, 18976028, 23720035, 37952056, 47440070, 94880140, 189760280]

約数ペア:

[(1, 189760280), (2, 94880140), (4, 47440070), (5, 37952056), (8, 23720035), (10, 18976028), (20, 9488014), (40, 4744007), (71, 2672680), (109, 1740920), (142, 1336340), (218, 870460), (284, 668170), (355, 534536), (436, 435230), (545, 348184), (568, 334085), (613, 309560), (710, 267268), (872, 217615), (1090, 174092), (1226, 154780), (1420, 133634), (2180, 87046), (2452, 77390), (2840, 66817), (3065, 61912), (4360, 43523), (4904, 38695), (6130, 30956), (7739, 24520), (12260, 15478)]