1618020

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{101}}^1$

素因数の和:205

約数の個数: 72

約数和(自身を含む): 5012280

約数和(自身を除く): 3394260

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 89, 90, 101, 178, 180, 202, 267, 303, 356, 404, 445, 505, 534, 606, 801, 890, 909, 1010, 1068, 1212, 1335, 1515, 1602, 1780, 1818, 2020, 2670, 3030, 3204, 3636, 4005, 4545, 5340, 6060, 8010, 8989, 9090, 16020, 17978, 18180, 26967, 35956, 44945, 53934, 80901, 89890, 107868, 134835, 161802, 179780, 269670, 323604, 404505, 539340, 809010, 1618020]

約数ペア:

[(1, 1618020), (2, 809010), (3, 539340), (4, 404505), (5, 323604), (6, 269670), (9, 179780), (10, 161802), (12, 134835), (15, 107868), (18, 89890), (20, 80901), (30, 53934), (36, 44945), (45, 35956), (60, 26967), (89, 18180), (90, 17978), (101, 16020), (178, 9090), (180, 8989), (202, 8010), (267, 6060), (303, 5340), (356, 4545), (404, 4005), (445, 3636), (505, 3204), (534, 3030), (606, 2670), (801, 2020), (890, 1818), (909, 1780), (1010, 1602), (1068, 1515), (1212, 1335)]