81710010

素因数分解:

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

素因数の和:304

約数の個数: 72

約数和(自身を含む): 216981180

約数和(自身を除く): 135271170

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 89, 90, 101, 178, 202, 267, 303, 445, 505, 534, 606, 801, 890, 909, 1010, 1335, 1515, 1602, 1818, 2670, 3030, 4005, 4545, 8010, 8989, 9090, 10201, 17978, 20402, 26967, 30603, 44945, 51005, 53934, 61206, 80901, 89890, 91809, 102010, 134835, 153015, 161802, 183618, 269670, 306030, 404505, 459045, 809010, 907889, 918090, 1815778, 2723667, 4539445, 5447334, 8171001, 9078890, 13618335, 16342002, 27236670, 40855005, 81710010]

約数ペア:

[(1, 81710010), (2, 40855005), (3, 27236670), (5, 16342002), (6, 13618335), (9, 9078890), (10, 8171001), (15, 5447334), (18, 4539445), (30, 2723667), (45, 1815778), (89, 918090), (90, 907889), (101, 809010), (178, 459045), (202, 404505), (267, 306030), (303, 269670), (445, 183618), (505, 161802), (534, 153015), (606, 134835), (801, 102010), (890, 91809), (909, 89890), (1010, 80901), (1335, 61206), (1515, 53934), (1602, 51005), (1818, 44945), (2670, 30603), (3030, 26967), (4005, 20402), (4545, 17978), (8010, 10201), (8989, 9090)]