72072980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{109}}^1\times {\mathrm{4723}}^1$

素因数の和:4848

約数の個数: 48

約数和(自身を含む): 174599040

約数和(自身を除く): 102526060

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 109, 140, 218, 436, 545, 763, 1090, 1526, 2180, 3052, 3815, 4723, 7630, 9446, 15260, 18892, 23615, 33061, 47230, 66122, 94460, 132244, 165305, 330610, 514807, 661220, 1029614, 2059228, 2574035, 3603649, 5148070, 7207298, 10296140, 14414596, 18018245, 36036490, 72072980]

約数ペア:

[(1, 72072980), (2, 36036490), (4, 18018245), (5, 14414596), (7, 10296140), (10, 7207298), (14, 5148070), (20, 3603649), (28, 2574035), (35, 2059228), (70, 1029614), (109, 661220), (140, 514807), (218, 330610), (436, 165305), (545, 132244), (763, 94460), (1090, 66122), (1526, 47230), (2180, 33061), (3052, 23615), (3815, 18892), (4723, 15260), (7630, 9446)]