12372980

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{79}}^1\times {\mathrm{191}}^1$

素因数の和:320

約数の個数: 48

約数和(自身を含む): 27095040

約数和(自身を除く): 14722060

約数列:

[1, 2, 4, 5, 10, 20, 41, 79, 82, 158, 164, 191, 205, 316, 382, 395, 410, 764, 790, 820, 955, 1580, 1910, 3239, 3820, 6478, 7831, 12956, 15089, 15662, 16195, 30178, 31324, 32390, 39155, 60356, 64780, 75445, 78310, 150890, 156620, 301780, 618649, 1237298, 2474596, 3093245, 6186490, 12372980]

約数ペア:

[(1, 12372980), (2, 6186490), (4, 3093245), (5, 2474596), (10, 1237298), (20, 618649), (41, 301780), (79, 156620), (82, 150890), (158, 78310), (164, 75445), (191, 64780), (205, 60356), (316, 39155), (382, 32390), (395, 31324), (410, 30178), (764, 16195), (790, 15662), (820, 15089), (955, 12956), (1580, 7831), (1910, 6478), (3239, 3820)]