20001090

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{37}}^2\times {\mathrm{487}}^1$

素因数の和:571

約数の個数: 48

約数和(自身を含む): 49436352

約数和(自身を除く): 29435262

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 37, 74, 111, 185, 222, 370, 487, 555, 974, 1110, 1369, 1461, 2435, 2738, 2922, 4107, 4870, 6845, 7305, 8214, 13690, 14610, 18019, 20535, 36038, 41070, 54057, 90095, 108114, 180190, 270285, 540570, 666703, 1333406, 2000109, 3333515, 4000218, 6667030, 10000545, 20001090]

約数ペア:

[(1, 20001090), (2, 10000545), (3, 6667030), (5, 4000218), (6, 3333515), (10, 2000109), (15, 1333406), (30, 666703), (37, 540570), (74, 270285), (111, 180190), (185, 108114), (222, 90095), (370, 54057), (487, 41070), (555, 36038), (974, 20535), (1110, 18019), (1369, 14610), (1461, 13690), (2435, 8214), (2738, 7305), (2922, 6845), (4107, 4870)]