20323004

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{149}}^1$

素因数の和:270

約数の個数: 48

約数和(自身を含む): 40101600

約数和(自身を除く): 19778596

約数列:

[1, 2, 4, 13, 26, 43, 52, 61, 86, 122, 149, 172, 244, 298, 559, 596, 793, 1118, 1586, 1937, 2236, 2623, 3172, 3874, 5246, 6407, 7748, 9089, 10492, 12814, 18178, 25628, 34099, 36356, 68198, 83291, 118157, 136396, 166582, 236314, 333164, 390827, 472628, 781654, 1563308, 5080751, 10161502, 20323004]

約数ペア:

[(1, 20323004), (2, 10161502), (4, 5080751), (13, 1563308), (26, 781654), (43, 472628), (52, 390827), (61, 333164), (86, 236314), (122, 166582), (149, 136396), (172, 118157), (244, 83291), (298, 68198), (559, 36356), (596, 34099), (793, 25628), (1118, 18178), (1586, 12814), (1937, 10492), (2236, 9089), (2623, 7748), (3172, 6407), (3874, 5246)]