80212870

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{157}}^1\times {\mathrm{2689}}^1$

素因数の和:2872

約数の個数: 32

約数和(自身を含む): 153007200

約数和(自身を除く): 72794330

約数列:

[1, 2, 5, 10, 19, 38, 95, 157, 190, 314, 785, 1570, 2689, 2983, 5378, 5966, 13445, 14915, 26890, 29830, 51091, 102182, 255455, 422173, 510910, 844346, 2110865, 4221730, 8021287, 16042574, 40106435, 80212870]

約数ペア:

[(1, 80212870), (2, 40106435), (5, 16042574), (10, 8021287), (19, 4221730), (38, 2110865), (95, 844346), (157, 510910), (190, 422173), (314, 255455), (785, 102182), (1570, 51091), (2689, 29830), (2983, 26890), (5378, 14915), (5966, 13445)]