197971920

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{274961}}^1$

素因数の和:274980

約数の個数: 60

約数和(自身を含む): 664858116

約数和(自身を除く): 466886196

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, 274961, 549922, 824883, 1099844, 1374805, 1649766, 2199688, 2474649, 2749610, 3299532, 4124415, 4399376, 4949298, 5499220, 6599064, 8248830, 9898596, 10998440, 12373245, 13198128, 16497660, 19797192, 21996880, 24746490, 32995320, 39594384, 49492980, 65990640, 98985960, 197971920]

約数ペア:

[(1, 197971920), (2, 98985960), (3, 65990640), (4, 49492980), (5, 39594384), (6, 32995320), (8, 24746490), (9, 21996880), (10, 19797192), (12, 16497660), (15, 13198128), (16, 12373245), (18, 10998440), (20, 9898596), (24, 8248830), (30, 6599064), (36, 5499220), (40, 4949298), (45, 4399376), (48, 4124415), (60, 3299532), (72, 2749610), (80, 2474649), (90, 2199688), (120, 1649766), (144, 1374805), (180, 1099844), (240, 824883), (360, 549922), (720, 274961)]