49998620

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{163}}^1\times {\mathrm{313}}^1$

素因数の和:499

約数の個数: 72

約数和(自身を含む): 123281424

約数和(自身を除く): 73282804

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 163, 196, 245, 313, 326, 490, 626, 652, 815, 980, 1141, 1252, 1565, 1630, 2191, 2282, 3130, 3260, 4382, 4564, 5705, 6260, 7987, 8764, 10955, 11410, 15337, 15974, 21910, 22820, 30674, 31948, 39935, 43820, 51019, 61348, 76685, 79870, 102038, 153370, 159740, 204076, 255095, 306740, 357133, 510190, 714266, 1020380, 1428532, 1785665, 2499931, 3571330, 4999862, 7142660, 9999724, 12499655, 24999310, 49998620]

約数ペア:

[(1, 49998620), (2, 24999310), (4, 12499655), (5, 9999724), (7, 7142660), (10, 4999862), (14, 3571330), (20, 2499931), (28, 1785665), (35, 1428532), (49, 1020380), (70, 714266), (98, 510190), (140, 357133), (163, 306740), (196, 255095), (245, 204076), (313, 159740), (326, 153370), (490, 102038), (626, 79870), (652, 76685), (815, 61348), (980, 51019), (1141, 43820), (1252, 39935), (1565, 31948), (1630, 30674), (2191, 22820), (2282, 21910), (3130, 15974), (3260, 15337), (4382, 11410), (4564, 10955), (5705, 8764), (6260, 7987)]