27888740

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{109}}^1\times {\mathrm{1163}}^1$

素因数の和:1292

約数の個数: 48

約数和(自身を含む): 64532160

約数和(自身を除く): 36643420

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 109, 110, 218, 220, 436, 545, 1090, 1163, 1199, 2180, 2326, 2398, 4652, 4796, 5815, 5995, 11630, 11990, 12793, 23260, 23980, 25586, 51172, 63965, 126767, 127930, 253534, 255860, 507068, 633835, 1267670, 1394437, 2535340, 2788874, 5577748, 6972185, 13944370, 27888740]

約数ペア:

[(1, 27888740), (2, 13944370), (4, 6972185), (5, 5577748), (10, 2788874), (11, 2535340), (20, 1394437), (22, 1267670), (44, 633835), (55, 507068), (109, 255860), (110, 253534), (218, 127930), (220, 126767), (436, 63965), (545, 51172), (1090, 25586), (1163, 23980), (1199, 23260), (2180, 12793), (2326, 11990), (2398, 11630), (4652, 5995), (4796, 5815)]