209905960

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^2\times {\mathrm{31}}^1\times {\mathrm{1399}}^1$

素因数の和:1463

約数の個数: 96

約数和(自身を含む): 536256000

約数和(自身を除く): 326350040

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 31, 40, 44, 55, 62, 88, 110, 121, 124, 155, 220, 242, 248, 310, 341, 440, 484, 605, 620, 682, 968, 1210, 1240, 1364, 1399, 1705, 2420, 2728, 2798, 3410, 3751, 4840, 5596, 6820, 6995, 7502, 11192, 13640, 13990, 15004, 15389, 18755, 27980, 30008, 30778, 37510, 43369, 55960, 61556, 75020, 76945, 86738, 123112, 150040, 153890, 169279, 173476, 216845, 307780, 338558, 346952, 433690, 477059, 615560, 677116, 846395, 867380, 954118, 1354232, 1692790, 1734760, 1908236, 2385295, 3385580, 3816472, 4770590, 5247649, 6771160, 9541180, 10495298, 19082360, 20990596, 26238245, 41981192, 52476490, 104952980, 209905960]

約数ペア:

[(1, 209905960), (2, 104952980), (4, 52476490), (5, 41981192), (8, 26238245), (10, 20990596), (11, 19082360), (20, 10495298), (22, 9541180), (31, 6771160), (40, 5247649), (44, 4770590), (55, 3816472), (62, 3385580), (88, 2385295), (110, 1908236), (121, 1734760), (124, 1692790), (155, 1354232), (220, 954118), (242, 867380), (248, 846395), (310, 677116), (341, 615560), (440, 477059), (484, 433690), (605, 346952), (620, 338558), (682, 307780), (968, 216845), (1210, 173476), (1240, 169279), (1364, 153890), (1399, 150040), (1705, 123112), (2420, 86738), (2728, 76945), (2798, 75020), (3410, 61556), (3751, 55960), (4840, 43369), (5596, 37510), (6820, 30778), (6995, 30008), (7502, 27980), (11192, 18755), (13640, 15389), (13990, 15004)]