20290590

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{131}}^1\times {\mathrm{1721}}^1$

素因数の和:1865

約数の個数: 48

約数和(自身を含む): 53189136

約数和(自身を除く): 32898546

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 131, 262, 393, 655, 786, 1179, 1310, 1721, 1965, 2358, 3442, 3930, 5163, 5895, 8605, 10326, 11790, 15489, 17210, 25815, 30978, 51630, 77445, 154890, 225451, 450902, 676353, 1127255, 1352706, 2029059, 2254510, 3381765, 4058118, 6763530, 10145295, 20290590]

約数ペア:

[(1, 20290590), (2, 10145295), (3, 6763530), (5, 4058118), (6, 3381765), (9, 2254510), (10, 2029059), (15, 1352706), (18, 1127255), (30, 676353), (45, 450902), (90, 225451), (131, 154890), (262, 77445), (393, 51630), (655, 30978), (786, 25815), (1179, 17210), (1310, 15489), (1721, 11790), (1965, 10326), (2358, 8605), (3442, 5895), (3930, 5163)]