31197780

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{5591}}^1$

素因数の和:5637

約数の個数: 72

約数和(自身を含む): 97703424

約数和(自身を除く): 66505644

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 31, 36, 45, 60, 62, 90, 93, 124, 155, 180, 186, 279, 310, 372, 465, 558, 620, 930, 1116, 1395, 1860, 2790, 5580, 5591, 11182, 16773, 22364, 27955, 33546, 50319, 55910, 67092, 83865, 100638, 111820, 167730, 173321, 201276, 251595, 335460, 346642, 503190, 519963, 693284, 866605, 1006380, 1039926, 1559889, 1733210, 2079852, 2599815, 3119778, 3466420, 5199630, 6239556, 7799445, 10399260, 15598890, 31197780]

約数ペア:

[(1, 31197780), (2, 15598890), (3, 10399260), (4, 7799445), (5, 6239556), (6, 5199630), (9, 3466420), (10, 3119778), (12, 2599815), (15, 2079852), (18, 1733210), (20, 1559889), (30, 1039926), (31, 1006380), (36, 866605), (45, 693284), (60, 519963), (62, 503190), (90, 346642), (93, 335460), (124, 251595), (155, 201276), (180, 173321), (186, 167730), (279, 111820), (310, 100638), (372, 83865), (465, 67092), (558, 55910), (620, 50319), (930, 33546), (1116, 27955), (1395, 22364), (1860, 16773), (2790, 11182), (5580, 5591)]