2100089900

素因数分解:

$2^2\times 5^2\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{28729}}^1$

素因数の和:28803

約数の個数: 72

約数和(自身を含む): 4937652720

約数和(自身を除く): 2837562820

約数列:

[1, 2, 4, 5, 10, 17, 20, 25, 34, 43, 50, 68, 85, 86, 100, 170, 172, 215, 340, 425, 430, 731, 850, 860, 1075, 1462, 1700, 2150, 2924, 3655, 4300, 7310, 14620, 18275, 28729, 36550, 57458, 73100, 114916, 143645, 287290, 488393, 574580, 718225, 976786, 1235347, 1436450, 1953572, 2441965, 2470694, 2872900, 4883930, 4941388, 6176735, 9767860, 12209825, 12353470, 21000899, 24419650, 24706940, 30883675, 42001798, 48839300, 61767350, 84003596, 105004495, 123534700, 210008990, 420017980, 525022475, 1050044950, 2100089900]

約数ペア:

[(1, 2100089900), (2, 1050044950), (4, 525022475), (5, 420017980), (10, 210008990), (17, 123534700), (20, 105004495), (25, 84003596), (34, 61767350), (43, 48839300), (50, 42001798), (68, 30883675), (85, 24706940), (86, 24419650), (100, 21000899), (170, 12353470), (172, 12209825), (215, 9767860), (340, 6176735), (425, 4941388), (430, 4883930), (731, 2872900), (850, 2470694), (860, 2441965), (1075, 1953572), (1462, 1436450), (1700, 1235347), (2150, 976786), (2924, 718225), (3655, 574580), (4300, 488393), (7310, 287290), (14620, 143645), (18275, 114916), (28729, 73100), (36550, 57458)]