16405000

素因数分解:

$2^3\times 5^4\times {\mathrm{17}}^1\times {\mathrm{193}}^1$

素因数の和:236

約数の個数: 80

約数和(自身を含む): 40908780

約数和(自身を除く): 24503780

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 25, 34, 40, 50, 68, 85, 100, 125, 136, 170, 193, 200, 250, 340, 386, 425, 500, 625, 680, 772, 850, 965, 1000, 1250, 1544, 1700, 1930, 2125, 2500, 3281, 3400, 3860, 4250, 4825, 5000, 6562, 7720, 8500, 9650, 10625, 13124, 16405, 17000, 19300, 21250, 24125, 26248, 32810, 38600, 42500, 48250, 65620, 82025, 85000, 96500, 120625, 131240, 164050, 193000, 241250, 328100, 410125, 482500, 656200, 820250, 965000, 1640500, 2050625, 3281000, 4101250, 8202500, 16405000]

約数ペア:

[(1, 16405000), (2, 8202500), (4, 4101250), (5, 3281000), (8, 2050625), (10, 1640500), (17, 965000), (20, 820250), (25, 656200), (34, 482500), (40, 410125), (50, 328100), (68, 241250), (85, 193000), (100, 164050), (125, 131240), (136, 120625), (170, 96500), (193, 85000), (200, 82025), (250, 65620), (340, 48250), (386, 42500), (425, 38600), (500, 32810), (625, 26248), (680, 24125), (772, 21250), (850, 19300), (965, 17000), (1000, 16405), (1250, 13124), (1544, 10625), (1700, 9650), (1930, 8500), (2125, 7720), (2500, 6562), (3281, 5000), (3400, 4825), (3860, 4250)]