221121180

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{175493}}^1$

素因数の和:175515

約数の個数: 72

約数和(自身を含む): 766557792

約数和(自身を除く): 545436612

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 420, 630, 1260, 175493, 350986, 526479, 701972, 877465, 1052958, 1228451, 1579437, 1754930, 2105916, 2456902, 2632395, 3158874, 3509860, 3685353, 4913804, 5264790, 6142255, 6317748, 7370706, 7897185, 10529580, 11056059, 12284510, 14741412, 15794370, 18426765, 22112118, 24569020, 31588740, 36853530, 44224236, 55280295, 73707060, 110560590, 221121180]

約数ペア:

[(1, 221121180), (2, 110560590), (3, 73707060), (4, 55280295), (5, 44224236), (6, 36853530), (7, 31588740), (9, 24569020), (10, 22112118), (12, 18426765), (14, 15794370), (15, 14741412), (18, 12284510), (20, 11056059), (21, 10529580), (28, 7897185), (30, 7370706), (35, 6317748), (36, 6142255), (42, 5264790), (45, 4913804), (60, 3685353), (63, 3509860), (70, 3158874), (84, 2632395), (90, 2456902), (105, 2105916), (126, 1754930), (140, 1579437), (180, 1228451), (210, 1052958), (252, 877465), (315, 701972), (420, 526479), (630, 350986), (1260, 175493)]