83712800

素因数分解:

$2^5\times 5^2\times {\mathrm{269}}^1\times {\mathrm{389}}^1$

素因数の和:678

約数の個数: 72

約数和(自身を含む): 205650900

約数和(自身を除く): 121938100

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 160, 200, 269, 389, 400, 538, 778, 800, 1076, 1345, 1556, 1945, 2152, 2690, 3112, 3890, 4304, 5380, 6224, 6725, 7780, 8608, 9725, 10760, 12448, 13450, 15560, 19450, 21520, 26900, 31120, 38900, 43040, 53800, 62240, 77800, 104641, 107600, 155600, 209282, 215200, 311200, 418564, 523205, 837128, 1046410, 1674256, 2092820, 2616025, 3348512, 4185640, 5232050, 8371280, 10464100, 16742560, 20928200, 41856400, 83712800]

約数ペア:

[(1, 83712800), (2, 41856400), (4, 20928200), (5, 16742560), (8, 10464100), (10, 8371280), (16, 5232050), (20, 4185640), (25, 3348512), (32, 2616025), (40, 2092820), (50, 1674256), (80, 1046410), (100, 837128), (160, 523205), (200, 418564), (269, 311200), (389, 215200), (400, 209282), (538, 155600), (778, 107600), (800, 104641), (1076, 77800), (1345, 62240), (1556, 53800), (1945, 43040), (2152, 38900), (2690, 31120), (3112, 26900), (3890, 21520), (4304, 19450), (5380, 15560), (6224, 13450), (6725, 12448), (7780, 10760), (8608, 9725)]