19998090

素因数分解:

$2^1\times 3^4\times 5^1\times 7^1\times {\mathrm{3527}}^1$

素因数の和:3553

約数の個数: 80

約数和(自身を含む): 61471872

約数和(自身を除く): 41473782

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 27, 30, 35, 42, 45, 54, 63, 70, 81, 90, 105, 126, 135, 162, 189, 210, 270, 315, 378, 405, 567, 630, 810, 945, 1134, 1890, 2835, 3527, 5670, 7054, 10581, 17635, 21162, 24689, 31743, 35270, 49378, 52905, 63486, 74067, 95229, 105810, 123445, 148134, 158715, 190458, 222201, 246890, 285687, 317430, 370335, 444402, 476145, 571374, 666603, 740670, 952290, 1111005, 1333206, 1428435, 1999809, 2222010, 2856870, 3333015, 3999618, 6666030, 9999045, 19998090]

約数ペア:

[(1, 19998090), (2, 9999045), (3, 6666030), (5, 3999618), (6, 3333015), (7, 2856870), (9, 2222010), (10, 1999809), (14, 1428435), (15, 1333206), (18, 1111005), (21, 952290), (27, 740670), (30, 666603), (35, 571374), (42, 476145), (45, 444402), (54, 370335), (63, 317430), (70, 285687), (81, 246890), (90, 222201), (105, 190458), (126, 158715), (135, 148134), (162, 123445), (189, 105810), (210, 95229), (270, 74067), (315, 63486), (378, 52905), (405, 49378), (567, 35270), (630, 31743), (810, 24689), (945, 21162), (1134, 17635), (1890, 10581), (2835, 7054), (3527, 5670)]