2530840

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{157}}^1$

素因数の和:212

約数の個数: 64

約数和(自身を含む): 6370560

約数和(自身を除く): 3839720

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 31, 40, 52, 62, 65, 104, 124, 130, 155, 157, 248, 260, 310, 314, 403, 520, 620, 628, 785, 806, 1240, 1256, 1570, 1612, 2015, 2041, 3140, 3224, 4030, 4082, 4867, 6280, 8060, 8164, 9734, 10205, 16120, 16328, 19468, 20410, 24335, 38936, 40820, 48670, 63271, 81640, 97340, 126542, 194680, 253084, 316355, 506168, 632710, 1265420, 2530840]

約数ペア:

[(1, 2530840), (2, 1265420), (4, 632710), (5, 506168), (8, 316355), (10, 253084), (13, 194680), (20, 126542), (26, 97340), (31, 81640), (40, 63271), (52, 48670), (62, 40820), (65, 38936), (104, 24335), (124, 20410), (130, 19468), (155, 16328), (157, 16120), (248, 10205), (260, 9734), (310, 8164), (314, 8060), (403, 6280), (520, 4867), (620, 4082), (628, 4030), (785, 3224), (806, 3140), (1240, 2041), (1256, 2015), (1570, 1612)]