26118980

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{79}}^1\times {\mathrm{271}}^1$

素因数の和:420

約数の個数: 48

約数和(自身を含む): 56663040

約数和(自身を除く): 30544060

約数列:

[1, 2, 4, 5, 10, 20, 61, 79, 122, 158, 244, 271, 305, 316, 395, 542, 610, 790, 1084, 1220, 1355, 1580, 2710, 4819, 5420, 9638, 16531, 19276, 21409, 24095, 33062, 42818, 48190, 66124, 82655, 85636, 96380, 107045, 165310, 214090, 330620, 428180, 1305949, 2611898, 5223796, 6529745, 13059490, 26118980]

約数ペア:

[(1, 26118980), (2, 13059490), (4, 6529745), (5, 5223796), (10, 2611898), (20, 1305949), (61, 428180), (79, 330620), (122, 214090), (158, 165310), (244, 107045), (271, 96380), (305, 85636), (316, 82655), (395, 66124), (542, 48190), (610, 42818), (790, 33062), (1084, 24095), (1220, 21409), (1355, 19276), (1580, 16531), (2710, 9638), (4819, 5420)]