19977660

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{2707}}^1$

素因数の和:2763

約数の個数: 72

約数和(自身を含む): 62099856

約数和(自身を除く): 42122196

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 41, 45, 60, 82, 90, 123, 164, 180, 205, 246, 369, 410, 492, 615, 738, 820, 1230, 1476, 1845, 2460, 2707, 3690, 5414, 7380, 8121, 10828, 13535, 16242, 24363, 27070, 32484, 40605, 48726, 54140, 81210, 97452, 110987, 121815, 162420, 221974, 243630, 332961, 443948, 487260, 554935, 665922, 998883, 1109870, 1331844, 1664805, 1997766, 2219740, 3329610, 3995532, 4994415, 6659220, 9988830, 19977660]

約数ペア:

[(1, 19977660), (2, 9988830), (3, 6659220), (4, 4994415), (5, 3995532), (6, 3329610), (9, 2219740), (10, 1997766), (12, 1664805), (15, 1331844), (18, 1109870), (20, 998883), (30, 665922), (36, 554935), (41, 487260), (45, 443948), (60, 332961), (82, 243630), (90, 221974), (123, 162420), (164, 121815), (180, 110987), (205, 97452), (246, 81210), (369, 54140), (410, 48726), (492, 40605), (615, 32484), (738, 27070), (820, 24363), (1230, 16242), (1476, 13535), (1845, 10828), (2460, 8121), (2707, 7380), (3690, 5414)]