65260820

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{263}}^1\times {\mathrm{653}}^1$

素因数の和:944

約数の個数: 48

約数和(自身を含む): 145031040

約数和(自身を除く): 79770220

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 263, 380, 526, 653, 1052, 1306, 1315, 2612, 2630, 3265, 4997, 5260, 6530, 9994, 12407, 13060, 19988, 24814, 24985, 49628, 49970, 62035, 99940, 124070, 171739, 248140, 343478, 686956, 858695, 1717390, 3263041, 3434780, 6526082, 13052164, 16315205, 32630410, 65260820]

約数ペア:

[(1, 65260820), (2, 32630410), (4, 16315205), (5, 13052164), (10, 6526082), (19, 3434780), (20, 3263041), (38, 1717390), (76, 858695), (95, 686956), (190, 343478), (263, 248140), (380, 171739), (526, 124070), (653, 99940), (1052, 62035), (1306, 49970), (1315, 49628), (2612, 24985), (2630, 24814), (3265, 19988), (4997, 13060), (5260, 12407), (6530, 9994)]