289133720

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{97}}^1\times {\mathrm{1733}}^1$

素因数の和:1884

約数の個数: 64

約数和(自身を含む): 672930720

約数和(自身を除く): 383797000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 97, 172, 194, 215, 344, 388, 430, 485, 776, 860, 970, 1720, 1733, 1940, 3466, 3880, 4171, 6932, 8342, 8665, 13864, 16684, 17330, 20855, 33368, 34660, 41710, 69320, 74519, 83420, 149038, 166840, 168101, 298076, 336202, 372595, 596152, 672404, 745190, 840505, 1344808, 1490380, 1681010, 2980760, 3362020, 6724040, 7228343, 14456686, 28913372, 36141715, 57826744, 72283430, 144566860, 289133720]

約数ペア:

[(1, 289133720), (2, 144566860), (4, 72283430), (5, 57826744), (8, 36141715), (10, 28913372), (20, 14456686), (40, 7228343), (43, 6724040), (86, 3362020), (97, 2980760), (172, 1681010), (194, 1490380), (215, 1344808), (344, 840505), (388, 745190), (430, 672404), (485, 596152), (776, 372595), (860, 336202), (970, 298076), (1720, 168101), (1733, 166840), (1940, 149038), (3466, 83420), (3880, 74519), (4171, 69320), (6932, 41710), (8342, 34660), (8665, 33368), (13864, 20855), (16684, 17330)]