389951890

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{157}}^1\times {\mathrm{10799}}^1$

素因数の和:10986

約数の個数: 32

約数和(自身を含む): 737164800

約数和(自身を除く): 347212910

約数列:

[1, 2, 5, 10, 23, 46, 115, 157, 230, 314, 785, 1570, 3611, 7222, 10799, 18055, 21598, 36110, 53995, 107990, 248377, 496754, 1241885, 1695443, 2483770, 3390886, 8477215, 16954430, 38995189, 77990378, 194975945, 389951890]

約数ペア:

[(1, 389951890), (2, 194975945), (5, 77990378), (10, 38995189), (23, 16954430), (46, 8477215), (115, 3390886), (157, 2483770), (230, 1695443), (314, 1241885), (785, 496754), (1570, 248377), (3611, 107990), (7222, 53995), (10799, 36110), (18055, 21598)]