138864190

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{199}}^1\times {\mathrm{2251}}^1$

素因数の和:2488

約数の個数: 32

約数和(自身を含む): 259430400

約数和(自身を除く): 120566210

約数列:

[1, 2, 5, 10, 31, 62, 155, 199, 310, 398, 995, 1990, 2251, 4502, 6169, 11255, 12338, 22510, 30845, 61690, 69781, 139562, 348905, 447949, 697810, 895898, 2239745, 4479490, 13886419, 27772838, 69432095, 138864190]

約数ペア:

[(1, 138864190), (2, 69432095), (5, 27772838), (10, 13886419), (31, 4479490), (62, 2239745), (155, 895898), (199, 697810), (310, 447949), (398, 348905), (995, 139562), (1990, 69781), (2251, 61690), (4502, 30845), (6169, 22510), (11255, 12338)]