313639528

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{157}}^1\times {\mathrm{397}}^1$

素因数の和:614

約数の個数: 64

約数和(自身を含む): 645189840

約数和(自身を除く): 331550312

約数列:

[1, 2, 4, 8, 17, 34, 37, 68, 74, 136, 148, 157, 296, 314, 397, 628, 629, 794, 1256, 1258, 1588, 2516, 2669, 3176, 5032, 5338, 5809, 6749, 10676, 11618, 13498, 14689, 21352, 23236, 26996, 29378, 46472, 53992, 58756, 62329, 98753, 117512, 124658, 197506, 249316, 249713, 395012, 498632, 499426, 790024, 998852, 1059593, 1997704, 2119186, 2306173, 4238372, 4612346, 8476744, 9224692, 18449384, 39204941, 78409882, 156819764, 313639528]

約数ペア:

[(1, 313639528), (2, 156819764), (4, 78409882), (8, 39204941), (17, 18449384), (34, 9224692), (37, 8476744), (68, 4612346), (74, 4238372), (136, 2306173), (148, 2119186), (157, 1997704), (296, 1059593), (314, 998852), (397, 790024), (628, 499426), (629, 498632), (794, 395012), (1256, 249713), (1258, 249316), (1588, 197506), (2516, 124658), (2669, 117512), (3176, 98753), (5032, 62329), (5338, 58756), (5809, 53992), (6749, 46472), (10676, 29378), (11618, 26996), (13498, 23236), (14689, 21352)]