491020020

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{547}}^1\times {\mathrm{4987}}^1$

素因数の和:5549

約数の個数: 72

約数和(自身を含む): 1492449504

約数和(自身を除く): 1001429484

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 547, 1094, 1641, 2188, 2735, 3282, 4923, 4987, 5470, 6564, 8205, 9846, 9974, 10940, 14961, 16410, 19692, 19948, 24615, 24935, 29922, 32820, 44883, 49230, 49870, 59844, 74805, 89766, 98460, 99740, 149610, 179532, 224415, 299220, 448830, 897660, 2727889, 5455778, 8183667, 10911556, 13639445, 16367334, 24551001, 27278890, 32734668, 40918335, 49102002, 54557780, 81836670, 98204004, 122755005, 163673340, 245510010, 491020020]

約数ペア:

[(1, 491020020), (2, 245510010), (3, 163673340), (4, 122755005), (5, 98204004), (6, 81836670), (9, 54557780), (10, 49102002), (12, 40918335), (15, 32734668), (18, 27278890), (20, 24551001), (30, 16367334), (36, 13639445), (45, 10911556), (60, 8183667), (90, 5455778), (180, 2727889), (547, 897660), (1094, 448830), (1641, 299220), (2188, 224415), (2735, 179532), (3282, 149610), (4923, 99740), (4987, 98460), (5470, 89766), (6564, 74805), (8205, 59844), (9846, 49870), (9974, 49230), (10940, 44883), (14961, 32820), (16410, 29922), (19692, 24935), (19948, 24615)]