55515880

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{107}}^1\times {\mathrm{109}}^1$

素因数の和:251

約数の個数: 128

約数和(自身を含む): 153964800

約数和(自身を除く): 98448920

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 17, 20, 28, 34, 35, 40, 56, 68, 70, 85, 107, 109, 119, 136, 140, 170, 214, 218, 238, 280, 340, 428, 436, 476, 535, 545, 595, 680, 749, 763, 856, 872, 952, 1070, 1090, 1190, 1498, 1526, 1819, 1853, 2140, 2180, 2380, 2996, 3052, 3638, 3706, 3745, 3815, 4280, 4360, 4760, 5992, 6104, 7276, 7412, 7490, 7630, 9095, 9265, 11663, 12733, 12971, 14552, 14824, 14980, 15260, 18190, 18530, 23326, 25466, 25942, 29960, 30520, 36380, 37060, 46652, 50932, 51884, 58315, 63665, 64855, 72760, 74120, 81641, 93304, 101864, 103768, 116630, 127330, 129710, 163282, 198271, 233260, 254660, 259420, 326564, 396542, 408205, 466520, 509320, 518840, 653128, 793084, 816410, 991355, 1387897, 1586168, 1632820, 1982710, 2775794, 3265640, 3965420, 5551588, 6939485, 7930840, 11103176, 13878970, 27757940, 55515880]

約数ペア:

[(1, 55515880), (2, 27757940), (4, 13878970), (5, 11103176), (7, 7930840), (8, 6939485), (10, 5551588), (14, 3965420), (17, 3265640), (20, 2775794), (28, 1982710), (34, 1632820), (35, 1586168), (40, 1387897), (56, 991355), (68, 816410), (70, 793084), (85, 653128), (107, 518840), (109, 509320), (119, 466520), (136, 408205), (140, 396542), (170, 326564), (214, 259420), (218, 254660), (238, 233260), (280, 198271), (340, 163282), (428, 129710), (436, 127330), (476, 116630), (535, 103768), (545, 101864), (595, 93304), (680, 81641), (749, 74120), (763, 72760), (856, 64855), (872, 63665), (952, 58315), (1070, 51884), (1090, 50932), (1190, 46652), (1498, 37060), (1526, 36380), (1819, 30520), (1853, 29960), (2140, 25942), (2180, 25466), (2380, 23326), (2996, 18530), (3052, 18190), (3638, 15260), (3706, 14980), (3745, 14824), (3815, 14552), (4280, 12971), (4360, 12733), (4760, 11663), (5992, 9265), (6104, 9095), (7276, 7630), (7412, 7490)]