19086700

素因数分解:

$2^2\times 5^2\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{131}}^1$

素因数の和:223

約数の個数: 72

約数和(自身を含む): 43997184

約数和(自身を除く): 24910484

約数列:

[1, 2, 4, 5, 10, 20, 25, 31, 47, 50, 62, 94, 100, 124, 131, 155, 188, 235, 262, 310, 470, 524, 620, 655, 775, 940, 1175, 1310, 1457, 1550, 2350, 2620, 2914, 3100, 3275, 4061, 4700, 5828, 6157, 6550, 7285, 8122, 12314, 13100, 14570, 16244, 20305, 24628, 29140, 30785, 36425, 40610, 61570, 72850, 81220, 101525, 123140, 145700, 153925, 190867, 203050, 307850, 381734, 406100, 615700, 763468, 954335, 1908670, 3817340, 4771675, 9543350, 19086700]

約数ペア:

[(1, 19086700), (2, 9543350), (4, 4771675), (5, 3817340), (10, 1908670), (20, 954335), (25, 763468), (31, 615700), (47, 406100), (50, 381734), (62, 307850), (94, 203050), (100, 190867), (124, 153925), (131, 145700), (155, 123140), (188, 101525), (235, 81220), (262, 72850), (310, 61570), (470, 40610), (524, 36425), (620, 30785), (655, 29140), (775, 24628), (940, 20305), (1175, 16244), (1310, 14570), (1457, 13100), (1550, 12314), (2350, 8122), (2620, 7285), (2914, 6550), (3100, 6157), (3275, 5828), (4061, 4700)]