442189420

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{137}}^1\times {\mathrm{2273}}^1$

素因数の和:2490

約数の個数: 48

約数和(自身を含む): 948967488

約数和(自身を除く): 506778068

約数列:

[1, 2, 4, 5, 10, 20, 71, 137, 142, 274, 284, 355, 548, 685, 710, 1370, 1420, 2273, 2740, 4546, 9092, 9727, 11365, 19454, 22730, 38908, 45460, 48635, 97270, 161383, 194540, 311401, 322766, 622802, 645532, 806915, 1245604, 1557005, 1613830, 3114010, 3227660, 6228020, 22109471, 44218942, 88437884, 110547355, 221094710, 442189420]

約数ペア:

[(1, 442189420), (2, 221094710), (4, 110547355), (5, 88437884), (10, 44218942), (20, 22109471), (71, 6228020), (137, 3227660), (142, 3114010), (274, 1613830), (284, 1557005), (355, 1245604), (548, 806915), (685, 645532), (710, 622802), (1370, 322766), (1420, 311401), (2273, 194540), (2740, 161383), (4546, 97270), (9092, 48635), (9727, 45460), (11365, 38908), (19454, 22730)]