20074185

素因数分解:

$3^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{71}}^1\times {\mathrm{103}}^1$

素因数の和:246

約数の個数: 48

約数和(自身を含む): 36211968

約数和(自身を除く): 16137783

約数列:

[1, 3, 5, 9, 15, 45, 61, 71, 103, 183, 213, 305, 309, 355, 515, 549, 639, 915, 927, 1065, 1545, 2745, 3195, 4331, 4635, 6283, 7313, 12993, 18849, 21655, 21939, 31415, 36565, 38979, 56547, 64965, 65817, 94245, 109695, 194895, 282735, 329085, 446093, 1338279, 2230465, 4014837, 6691395, 20074185]

約数ペア:

[(1, 20074185), (3, 6691395), (5, 4014837), (9, 2230465), (15, 1338279), (45, 446093), (61, 329085), (71, 282735), (103, 194895), (183, 109695), (213, 94245), (305, 65817), (309, 64965), (355, 56547), (515, 38979), (549, 36565), (639, 31415), (915, 21939), (927, 21655), (1065, 18849), (1545, 12993), (2745, 7313), (3195, 6283), (4331, 4635)]