205675920

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{285661}}^1$

素因数の和:285680

約数の個数: 60

約数和(自身を含む): 690730716

約数和(自身を除く): 485054796

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 180, 240, 360, 720, 285661, 571322, 856983, 1142644, 1428305, 1713966, 2285288, 2570949, 2856610, 3427932, 4284915, 4570576, 5141898, 5713220, 6855864, 8569830, 10283796, 11426440, 12854745, 13711728, 17139660, 20567592, 22852880, 25709490, 34279320, 41135184, 51418980, 68558640, 102837960, 205675920]

約数ペア:

[(1, 205675920), (2, 102837960), (3, 68558640), (4, 51418980), (5, 41135184), (6, 34279320), (8, 25709490), (9, 22852880), (10, 20567592), (12, 17139660), (15, 13711728), (16, 12854745), (18, 11426440), (20, 10283796), (24, 8569830), (30, 6855864), (36, 5713220), (40, 5141898), (45, 4570576), (48, 4284915), (60, 3427932), (72, 2856610), (80, 2570949), (90, 2285288), (120, 1713966), (144, 1428305), (180, 1142644), (240, 856983), (360, 571322), (720, 285661)]