664273620

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{181}}^1\times {\mathrm{20389}}^1$

素因数の和:20585

約数の個数: 72

約数和(自身を含む): 2026195080

約数和(自身を除く): 1361921460

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 181, 362, 543, 724, 905, 1086, 1629, 1810, 2172, 2715, 3258, 3620, 5430, 6516, 8145, 10860, 16290, 20389, 32580, 40778, 61167, 81556, 101945, 122334, 183501, 203890, 244668, 305835, 367002, 407780, 611670, 734004, 917505, 1223340, 1835010, 3670020, 3690409, 7380818, 11071227, 14761636, 18452045, 22142454, 33213681, 36904090, 44284908, 55356135, 66427362, 73808180, 110712270, 132854724, 166068405, 221424540, 332136810, 664273620]

約数ペア:

[(1, 664273620), (2, 332136810), (3, 221424540), (4, 166068405), (5, 132854724), (6, 110712270), (9, 73808180), (10, 66427362), (12, 55356135), (15, 44284908), (18, 36904090), (20, 33213681), (30, 22142454), (36, 18452045), (45, 14761636), (60, 11071227), (90, 7380818), (180, 3690409), (181, 3670020), (362, 1835010), (543, 1223340), (724, 917505), (905, 734004), (1086, 611670), (1629, 407780), (1810, 367002), (2172, 305835), (2715, 244668), (3258, 203890), (3620, 183501), (5430, 122334), (6516, 101945), (8145, 81556), (10860, 61167), (16290, 40778), (20389, 32580)]