1209452020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{443}}^1\times {\mathrm{19501}}^1$

素因数の和:19960

約数の個数: 48

約数和(自身を含む): 2909386368

約数和(自身を除く): 1699934348

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 443, 886, 1772, 2215, 3101, 4430, 6202, 8860, 12404, 15505, 19501, 31010, 39002, 62020, 78004, 97505, 136507, 195010, 273014, 390020, 546028, 682535, 1365070, 2730140, 8638943, 17277886, 34555772, 43194715, 60472601, 86389430, 120945202, 172778860, 241890404, 302363005, 604726010, 1209452020]

約数ペア:

[(1, 1209452020), (2, 604726010), (4, 302363005), (5, 241890404), (7, 172778860), (10, 120945202), (14, 86389430), (20, 60472601), (28, 43194715), (35, 34555772), (70, 17277886), (140, 8638943), (443, 2730140), (886, 1365070), (1772, 682535), (2215, 546028), (3101, 390020), (4430, 273014), (6202, 195010), (8860, 136507), (12404, 97505), (15505, 78004), (19501, 62020), (31010, 39002)]