197281620

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{449}}^1\times {\mathrm{2441}}^1$

素因数の和:2905

約数の個数: 72

約数和(自身を含む): 599999400

約数和(自身を除く): 402717780

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 449, 898, 1347, 1796, 2245, 2441, 2694, 4041, 4490, 4882, 5388, 6735, 7323, 8082, 8980, 9764, 12205, 13470, 14646, 16164, 20205, 21969, 24410, 26940, 29292, 36615, 40410, 43938, 48820, 73230, 80820, 87876, 109845, 146460, 219690, 439380, 1096009, 2192018, 3288027, 4384036, 5480045, 6576054, 9864081, 10960090, 13152108, 16440135, 19728162, 21920180, 32880270, 39456324, 49320405, 65760540, 98640810, 197281620]

約数ペア:

[(1, 197281620), (2, 98640810), (3, 65760540), (4, 49320405), (5, 39456324), (6, 32880270), (9, 21920180), (10, 19728162), (12, 16440135), (15, 13152108), (18, 10960090), (20, 9864081), (30, 6576054), (36, 5480045), (45, 4384036), (60, 3288027), (90, 2192018), (180, 1096009), (449, 439380), (898, 219690), (1347, 146460), (1796, 109845), (2245, 87876), (2441, 80820), (2694, 73230), (4041, 48820), (4490, 43938), (4882, 40410), (5388, 36615), (6735, 29292), (7323, 26940), (8082, 24410), (8980, 21969), (9764, 20205), (12205, 16164), (13470, 14646)]