691280408

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{30631}}^1$

素因数の和:30688

約数の個数: 64

約数和(自身を含む): 1646776320

約数和(自身を除く): 955495912

約数列:

[1, 2, 4, 7, 8, 13, 14, 26, 28, 31, 52, 56, 62, 91, 104, 124, 182, 217, 248, 364, 403, 434, 728, 806, 868, 1612, 1736, 2821, 3224, 5642, 11284, 22568, 30631, 61262, 122524, 214417, 245048, 398203, 428834, 796406, 857668, 949561, 1592812, 1715336, 1899122, 2787421, 3185624, 3798244, 5574842, 6646927, 7596488, 11149684, 12344293, 13293854, 22299368, 24688586, 26587708, 49377172, 53175416, 86410051, 98754344, 172820102, 345640204, 691280408]

約数ペア:

[(1, 691280408), (2, 345640204), (4, 172820102), (7, 98754344), (8, 86410051), (13, 53175416), (14, 49377172), (26, 26587708), (28, 24688586), (31, 22299368), (52, 13293854), (56, 12344293), (62, 11149684), (91, 7596488), (104, 6646927), (124, 5574842), (182, 3798244), (217, 3185624), (248, 2787421), (364, 1899122), (403, 1715336), (434, 1592812), (728, 949561), (806, 857668), (868, 796406), (1612, 428834), (1736, 398203), (2821, 245048), (3224, 214417), (5642, 122524), (11284, 61262), (22568, 30631)]