1905012620

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{109}}^1\times {\mathrm{4027}}^1$

素因数の和:4183

約数の個数: 96

約数和(自身を含む): 4763996160

約数和(自身を除く): 2858983540

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 31, 35, 62, 70, 109, 124, 140, 155, 217, 218, 310, 434, 436, 545, 620, 763, 868, 1085, 1090, 1526, 2170, 2180, 3052, 3379, 3815, 4027, 4340, 6758, 7630, 8054, 13516, 15260, 16108, 16895, 20135, 23653, 28189, 33790, 40270, 47306, 56378, 67580, 80540, 94612, 112756, 118265, 124837, 140945, 236530, 249674, 281890, 438943, 473060, 499348, 563780, 624185, 873859, 877886, 1248370, 1747718, 1755772, 2194715, 2496740, 3072601, 3495436, 4369295, 4389430, 6145202, 8738590, 8778860, 12290404, 13607233, 15363005, 17477180, 27214466, 30726010, 54428932, 61452020, 68036165, 95250631, 136072330, 190501262, 272144660, 381002524, 476253155, 952506310, 1905012620]

約数ペア:

[(1, 1905012620), (2, 952506310), (4, 476253155), (5, 381002524), (7, 272144660), (10, 190501262), (14, 136072330), (20, 95250631), (28, 68036165), (31, 61452020), (35, 54428932), (62, 30726010), (70, 27214466), (109, 17477180), (124, 15363005), (140, 13607233), (155, 12290404), (217, 8778860), (218, 8738590), (310, 6145202), (434, 4389430), (436, 4369295), (545, 3495436), (620, 3072601), (763, 2496740), (868, 2194715), (1085, 1755772), (1090, 1747718), (1526, 1248370), (2170, 877886), (2180, 873859), (3052, 624185), (3379, 563780), (3815, 499348), (4027, 473060), (4340, 438943), (6758, 281890), (7630, 249674), (8054, 236530), (13516, 140945), (15260, 124837), (16108, 118265), (16895, 112756), (20135, 94612), (23653, 80540), (28189, 67580), (33790, 56378), (40270, 47306)]