16975980

素因数分解:

$2^2\times 3^5\times 5^1\times 7^1\times {\mathrm{499}}^1$

素因数の和:530

約数の個数: 144

約数和(自身を含む): 61152000

約数和(自身を除く): 44176020

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 27, 28, 30, 35, 36, 42, 45, 54, 60, 63, 70, 81, 84, 90, 105, 108, 126, 135, 140, 162, 180, 189, 210, 243, 252, 270, 315, 324, 378, 405, 420, 486, 499, 540, 567, 630, 756, 810, 945, 972, 998, 1134, 1215, 1260, 1497, 1620, 1701, 1890, 1996, 2268, 2430, 2495, 2835, 2994, 3402, 3493, 3780, 4491, 4860, 4990, 5670, 5988, 6804, 6986, 7485, 8505, 8982, 9980, 10479, 11340, 13473, 13972, 14970, 17010, 17465, 17964, 20958, 22455, 26946, 29940, 31437, 34020, 34930, 40419, 41916, 44910, 52395, 53892, 62874, 67365, 69860, 80838, 89820, 94311, 104790, 121257, 125748, 134730, 157185, 161676, 188622, 202095, 209580, 242514, 269460, 282933, 314370, 377244, 404190, 471555, 485028, 565866, 606285, 628740, 808380, 848799, 943110, 1131732, 1212570, 1414665, 1697598, 1886220, 2425140, 2829330, 3395196, 4243995, 5658660, 8487990, 16975980]

約数ペア:

[(1, 16975980), (2, 8487990), (3, 5658660), (4, 4243995), (5, 3395196), (6, 2829330), (7, 2425140), (9, 1886220), (10, 1697598), (12, 1414665), (14, 1212570), (15, 1131732), (18, 943110), (20, 848799), (21, 808380), (27, 628740), (28, 606285), (30, 565866), (35, 485028), (36, 471555), (42, 404190), (45, 377244), (54, 314370), (60, 282933), (63, 269460), (70, 242514), (81, 209580), (84, 202095), (90, 188622), (105, 161676), (108, 157185), (126, 134730), (135, 125748), (140, 121257), (162, 104790), (180, 94311), (189, 89820), (210, 80838), (243, 69860), (252, 67365), (270, 62874), (315, 53892), (324, 52395), (378, 44910), (405, 41916), (420, 40419), (486, 34930), (499, 34020), (540, 31437), (567, 29940), (630, 26946), (756, 22455), (810, 20958), (945, 17964), (972, 17465), (998, 17010), (1134, 14970), (1215, 13972), (1260, 13473), (1497, 11340), (1620, 10479), (1701, 9980), (1890, 8982), (1996, 8505), (2268, 7485), (2430, 6986), (2495, 6804), (2835, 5988), (2994, 5670), (3402, 4990), (3493, 4860), (3780, 4491)]