18955000

素因数分解:

$2^3\times 5^4\times {\mathrm{17}}^1\times {\mathrm{223}}^1$

素因数の和:266

約数の個数: 80

約数和(自身を含む): 47234880

約数和(自身を除く): 28279880

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 25, 34, 40, 50, 68, 85, 100, 125, 136, 170, 200, 223, 250, 340, 425, 446, 500, 625, 680, 850, 892, 1000, 1115, 1250, 1700, 1784, 2125, 2230, 2500, 3400, 3791, 4250, 4460, 5000, 5575, 7582, 8500, 8920, 10625, 11150, 15164, 17000, 18955, 21250, 22300, 27875, 30328, 37910, 42500, 44600, 55750, 75820, 85000, 94775, 111500, 139375, 151640, 189550, 223000, 278750, 379100, 473875, 557500, 758200, 947750, 1115000, 1895500, 2369375, 3791000, 4738750, 9477500, 18955000]

約数ペア:

[(1, 18955000), (2, 9477500), (4, 4738750), (5, 3791000), (8, 2369375), (10, 1895500), (17, 1115000), (20, 947750), (25, 758200), (34, 557500), (40, 473875), (50, 379100), (68, 278750), (85, 223000), (100, 189550), (125, 151640), (136, 139375), (170, 111500), (200, 94775), (223, 85000), (250, 75820), (340, 55750), (425, 44600), (446, 42500), (500, 37910), (625, 30328), (680, 27875), (850, 22300), (892, 21250), (1000, 18955), (1115, 17000), (1250, 15164), (1700, 11150), (1784, 10625), (2125, 8920), (2230, 8500), (2500, 7582), (3400, 5575), (3791, 5000), (4250, 4460)]