31940820

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{2909}}^1$

素因数の和:2985

約数の個数: 72

約数和(自身を含む): 98509320

約数和(自身を除く): 66568500

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 61, 90, 122, 180, 183, 244, 305, 366, 549, 610, 732, 915, 1098, 1220, 1830, 2196, 2745, 2909, 3660, 5490, 5818, 8727, 10980, 11636, 14545, 17454, 26181, 29090, 34908, 43635, 52362, 58180, 87270, 104724, 130905, 174540, 177449, 261810, 354898, 523620, 532347, 709796, 887245, 1064694, 1597041, 1774490, 2129388, 2661735, 3194082, 3548980, 5323470, 6388164, 7985205, 10646940, 15970410, 31940820]

約数ペア:

[(1, 31940820), (2, 15970410), (3, 10646940), (4, 7985205), (5, 6388164), (6, 5323470), (9, 3548980), (10, 3194082), (12, 2661735), (15, 2129388), (18, 1774490), (20, 1597041), (30, 1064694), (36, 887245), (45, 709796), (60, 532347), (61, 523620), (90, 354898), (122, 261810), (180, 177449), (183, 174540), (244, 130905), (305, 104724), (366, 87270), (549, 58180), (610, 52362), (732, 43635), (915, 34908), (1098, 29090), (1220, 26181), (1830, 17454), (2196, 14545), (2745, 11636), (2909, 10980), (3660, 8727), (5490, 5818)]