640255.00000000

素因数分解:

$2^3\times 3^2\times {\mathrm{47}}^1\times {\mathrm{13831}}^1$

素因数の和:13890

約数の個数: 48

約数和(自身を含む): 129467520

約数和(自身を除く): 82663416

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 47, 72, 94, 141, 188, 282, 376, 423, 564, 846, 1128, 1692, 3384, 13831, 27662, 41493, 55324, 82986, 110648, 124479, 165972, 248958, 331944, 497916, 650057, 995832, 1300114, 1950171, 2600228, 3900342, 5200456, 5850513, 7800684, 11701026, 15601368, 23402052, 46804104]

約数ペア:

[(1, 46804104), (2, 23402052), (3, 15601368), (4, 11701026), (6, 7800684), (8, 5850513), (9, 5200456), (12, 3900342), (18, 2600228), (24, 1950171), (36, 1300114), (47, 995832), (72, 650057), (94, 497916), (141, 331944), (188, 248958), (282, 165972), (376, 124479), (423, 110648), (564, 82986), (846, 55324), (1128, 41493), (1692, 27662), (3384, 13831)]