81628065

素因数分解:

$3^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{131}}^1\times {\mathrm{227}}^1$

素因数の和:430

約数の個数: 48

約数和(自身を含む): 145544256

約数和(自身を除く): 63916191

約数列:

[1, 3, 5, 9, 15, 45, 61, 131, 183, 227, 305, 393, 549, 655, 681, 915, 1135, 1179, 1965, 2043, 2745, 3405, 5895, 7991, 10215, 13847, 23973, 29737, 39955, 41541, 69235, 71919, 89211, 119865, 124623, 148685, 207705, 267633, 359595, 446055, 623115, 1338165, 1813957, 5441871, 9069785, 16325613, 27209355, 81628065]

約数ペア:

[(1, 81628065), (3, 27209355), (5, 16325613), (9, 9069785), (15, 5441871), (45, 1813957), (61, 1338165), (131, 623115), (183, 446055), (227, 359595), (305, 267633), (393, 207705), (549, 148685), (655, 124623), (681, 119865), (915, 89211), (1135, 71919), (1179, 69235), (1965, 41541), (2043, 39955), (2745, 29737), (3405, 23973), (5895, 13847), (7991, 10215)]