61939940

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{269}}^1\times {\mathrm{397}}^1$

素因数の和:704

約数の個数: 48

約数和(自身を含む): 135399600

約数和(自身を除く): 73459660

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 269, 290, 397, 538, 580, 794, 1076, 1345, 1588, 1985, 2690, 3970, 5380, 7801, 7940, 11513, 15602, 23026, 31204, 39005, 46052, 57565, 78010, 106793, 115130, 156020, 213586, 230260, 427172, 533965, 1067930, 2135860, 3096997, 6193994, 12387988, 15484985, 30969970, 61939940]

約数ペア:

[(1, 61939940), (2, 30969970), (4, 15484985), (5, 12387988), (10, 6193994), (20, 3096997), (29, 2135860), (58, 1067930), (116, 533965), (145, 427172), (269, 230260), (290, 213586), (397, 156020), (538, 115130), (580, 106793), (794, 78010), (1076, 57565), (1345, 46052), (1588, 39005), (1985, 31204), (2690, 23026), (3970, 15602), (5380, 11513), (7801, 7940)]