2043294040

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{89}}^1\times {\mathrm{13999}}^1$

素因数の和:14140

約数の個数: 64

約数和(自身を含む): 4762800000

約数和(自身を除く): 2719505960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 89, 164, 178, 205, 328, 356, 410, 445, 712, 820, 890, 1640, 1780, 3560, 3649, 7298, 13999, 14596, 18245, 27998, 29192, 36490, 55996, 69995, 72980, 111992, 139990, 145960, 279980, 559960, 573959, 1147918, 1245911, 2295836, 2491822, 2869795, 4591672, 4983644, 5739590, 6229555, 9967288, 11479180, 12459110, 22958360, 24918220, 49836440, 51082351, 102164702, 204329404, 255411755, 408658808, 510823510, 1021647020, 2043294040]

約数ペア:

[(1, 2043294040), (2, 1021647020), (4, 510823510), (5, 408658808), (8, 255411755), (10, 204329404), (20, 102164702), (40, 51082351), (41, 49836440), (82, 24918220), (89, 22958360), (164, 12459110), (178, 11479180), (205, 9967288), (328, 6229555), (356, 5739590), (410, 4983644), (445, 4591672), (712, 2869795), (820, 2491822), (890, 2295836), (1640, 1245911), (1780, 1147918), (3560, 573959), (3649, 559960), (7298, 279980), (13999, 145960), (14596, 139990), (18245, 111992), (27998, 72980), (29192, 69995), (36490, 55996)]