201220920

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{558947}}^1$

素因数の和:558964

約数の個数: 48

約数和(自身を含む): 653969160

約数和(自身を除く): 452748240

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 120, 180, 360, 558947, 1117894, 1676841, 2235788, 2794735, 3353682, 4471576, 5030523, 5589470, 6707364, 8384205, 10061046, 11178940, 13414728, 16768410, 20122092, 22357880, 25152615, 33536820, 40244184, 50305230, 67073640, 100610460, 201220920]

約数ペア:

[(1, 201220920), (2, 100610460), (3, 67073640), (4, 50305230), (5, 40244184), (6, 33536820), (8, 25152615), (9, 22357880), (10, 20122092), (12, 16768410), (15, 13414728), (18, 11178940), (20, 10061046), (24, 8384205), (30, 6707364), (36, 5589470), (40, 5030523), (45, 4471576), (60, 3353682), (72, 2794735), (90, 2235788), (120, 1676841), (180, 1117894), (360, 558947)]