247979440

素因数分解:

$2^4\times 5^1\times {\mathrm{179}}^1\times {\mathrm{17317}}^1$

素因数の和:17509

約数の個数: 40

約数和(自身を含む): 579806640

約数和(自身を除く): 331827200

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 179, 358, 716, 895, 1432, 1790, 2864, 3580, 7160, 14320, 17317, 34634, 69268, 86585, 138536, 173170, 277072, 346340, 692680, 1385360, 3099743, 6199486, 12398972, 15498715, 24797944, 30997430, 49595888, 61994860, 123989720, 247979440]

約数ペア:

[(1, 247979440), (2, 123989720), (4, 61994860), (5, 49595888), (8, 30997430), (10, 24797944), (16, 15498715), (20, 12398972), (40, 6199486), (80, 3099743), (179, 1385360), (358, 692680), (716, 346340), (895, 277072), (1432, 173170), (1790, 138536), (2864, 86585), (3580, 69268), (7160, 34634), (14320, 17317)]