161313400

素因数分解:

$2^3\times 5^2\times {\mathrm{47}}^1\times {\mathrm{131}}^2$

素因数の和:325

約数の個数: 72

約数和(自身を含む): 385979760

約数和(自身を除く): 224666360

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 47, 50, 94, 100, 131, 188, 200, 235, 262, 376, 470, 524, 655, 940, 1048, 1175, 1310, 1880, 2350, 2620, 3275, 4700, 5240, 6157, 6550, 9400, 12314, 13100, 17161, 24628, 26200, 30785, 34322, 49256, 61570, 68644, 85805, 123140, 137288, 153925, 171610, 246280, 307850, 343220, 429025, 615700, 686440, 806567, 858050, 1231400, 1613134, 1716100, 3226268, 3432200, 4032835, 6452536, 8065670, 16131340, 20164175, 32262680, 40328350, 80656700, 161313400]

約数ペア:

[(1, 161313400), (2, 80656700), (4, 40328350), (5, 32262680), (8, 20164175), (10, 16131340), (20, 8065670), (25, 6452536), (40, 4032835), (47, 3432200), (50, 3226268), (94, 1716100), (100, 1613134), (131, 1231400), (188, 858050), (200, 806567), (235, 686440), (262, 615700), (376, 429025), (470, 343220), (524, 307850), (655, 246280), (940, 171610), (1048, 153925), (1175, 137288), (1310, 123140), (1880, 85805), (2350, 68644), (2620, 61570), (3275, 49256), (4700, 34322), (5240, 30785), (6157, 26200), (6550, 24628), (9400, 17161), (12314, 13100)]