291657340

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{331}}^1\times {\mathrm{3389}}^1$

素因数の和:3742

約数の個数: 48

約数和(自身を含む): 661782240

約数和(自身を除く): 370124900

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 331, 662, 1324, 1655, 3310, 3389, 4303, 6620, 6778, 8606, 13556, 16945, 17212, 21515, 33890, 43030, 44057, 67780, 86060, 88114, 176228, 220285, 440570, 881140, 1121759, 2243518, 4487036, 5608795, 11217590, 14582867, 22435180, 29165734, 58331468, 72914335, 145828670, 291657340]

約数ペア:

[(1, 291657340), (2, 145828670), (4, 72914335), (5, 58331468), (10, 29165734), (13, 22435180), (20, 14582867), (26, 11217590), (52, 5608795), (65, 4487036), (130, 2243518), (260, 1121759), (331, 881140), (662, 440570), (1324, 220285), (1655, 176228), (3310, 88114), (3389, 86060), (4303, 67780), (6620, 44057), (6778, 43030), (8606, 33890), (13556, 21515), (16945, 17212)]