128877800

素因数分解:

$2^3\times 5^2\times {\mathrm{131}}^1\times {\mathrm{4919}}^1$

素因数の和:5066

約数の個数: 48

約数和(自身を含む): 301989600

約数和(自身を除く): 173111800

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 131, 200, 262, 524, 655, 1048, 1310, 2620, 3275, 4919, 5240, 6550, 9838, 13100, 19676, 24595, 26200, 39352, 49190, 98380, 122975, 196760, 245950, 491900, 644389, 983800, 1288778, 2577556, 3221945, 5155112, 6443890, 12887780, 16109725, 25775560, 32219450, 64438900, 128877800]

約数ペア:

[(1, 128877800), (2, 64438900), (4, 32219450), (5, 25775560), (8, 16109725), (10, 12887780), (20, 6443890), (25, 5155112), (40, 3221945), (50, 2577556), (100, 1288778), (131, 983800), (200, 644389), (262, 491900), (524, 245950), (655, 196760), (1048, 122975), (1310, 98380), (2620, 49190), (3275, 39352), (4919, 26200), (5240, 24595), (6550, 19676), (9838, 13100)]