31687916

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{89}}^1\times {\mathrm{167}}^1$

素因数の和:314

約数の個数: 48

約数和(自身を含む): 62233920

約数和(自身を除く): 30546004

約数列:

[1, 2, 4, 13, 26, 41, 52, 82, 89, 164, 167, 178, 334, 356, 533, 668, 1066, 1157, 2132, 2171, 2314, 3649, 4342, 4628, 6847, 7298, 8684, 13694, 14596, 14863, 27388, 29726, 47437, 59452, 89011, 94874, 178022, 189748, 193219, 356044, 386438, 609383, 772876, 1218766, 2437532, 7921979, 15843958, 31687916]

約数ペア:

[(1, 31687916), (2, 15843958), (4, 7921979), (13, 2437532), (26, 1218766), (41, 772876), (52, 609383), (82, 386438), (89, 356044), (164, 193219), (167, 189748), (178, 178022), (334, 94874), (356, 89011), (533, 59452), (668, 47437), (1066, 29726), (1157, 27388), (2132, 14863), (2171, 14596), (2314, 13694), (3649, 8684), (4342, 7298), (4628, 6847)]