261661452

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{887}}^1$

素因数の和:999

約数の個数: 96

約数和(自身を含む): 690622464

約数和(自身を除く): 428961012

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 31, 39, 52, 61, 62, 78, 93, 122, 124, 156, 183, 186, 244, 366, 372, 403, 732, 793, 806, 887, 1209, 1586, 1612, 1774, 1891, 2379, 2418, 2661, 3172, 3548, 3782, 4758, 4836, 5322, 5673, 7564, 9516, 10644, 11346, 11531, 22692, 23062, 24583, 27497, 34593, 46124, 49166, 54107, 54994, 69186, 73749, 82491, 98332, 108214, 109988, 138372, 147498, 162321, 164982, 216428, 294996, 324642, 329964, 357461, 649284, 703391, 714922, 1072383, 1406782, 1429844, 1677317, 2110173, 2144766, 2813564, 3354634, 4220346, 4289532, 5031951, 6709268, 8440692, 10063902, 20127804, 21805121, 43610242, 65415363, 87220484, 130830726, 261661452]

約数ペア:

[(1, 261661452), (2, 130830726), (3, 87220484), (4, 65415363), (6, 43610242), (12, 21805121), (13, 20127804), (26, 10063902), (31, 8440692), (39, 6709268), (52, 5031951), (61, 4289532), (62, 4220346), (78, 3354634), (93, 2813564), (122, 2144766), (124, 2110173), (156, 1677317), (183, 1429844), (186, 1406782), (244, 1072383), (366, 714922), (372, 703391), (403, 649284), (732, 357461), (793, 329964), (806, 324642), (887, 294996), (1209, 216428), (1586, 164982), (1612, 162321), (1774, 147498), (1891, 138372), (2379, 109988), (2418, 108214), (2661, 98332), (3172, 82491), (3548, 73749), (3782, 69186), (4758, 54994), (4836, 54107), (5322, 49166), (5673, 46124), (7564, 34593), (9516, 27497), (10644, 24583), (11346, 23062), (11531, 22692)]