28166445

素因数分解:

$3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{331}}^1$

素因数の和:434

約数の個数: 48

約数和(自身を含む): 51377664

約数和(自身を除く): 23211219

約数列:

[1, 3, 5, 9, 15, 31, 45, 61, 93, 155, 183, 279, 305, 331, 465, 549, 915, 993, 1395, 1655, 1891, 2745, 2979, 4965, 5673, 9455, 10261, 14895, 17019, 20191, 28365, 30783, 51305, 60573, 85095, 92349, 100955, 153915, 181719, 302865, 461745, 625921, 908595, 1877763, 3129605, 5633289, 9388815, 28166445]

約数ペア:

[(1, 28166445), (3, 9388815), (5, 5633289), (9, 3129605), (15, 1877763), (31, 908595), (45, 625921), (61, 461745), (93, 302865), (155, 181719), (183, 153915), (279, 100955), (305, 92349), (331, 85095), (465, 60573), (549, 51305), (915, 30783), (993, 28365), (1395, 20191), (1655, 17019), (1891, 14895), (2745, 10261), (2979, 9455), (4965, 5673)]