31930020

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{179}}^1\times {\mathrm{991}}^1$

素因数の和:1185

約数の個数: 72

約数和(自身を含む): 97493760

約数和(自身を除く): 65563740

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 179, 180, 358, 537, 716, 895, 991, 1074, 1611, 1790, 1982, 2148, 2685, 2973, 3222, 3580, 3964, 4955, 5370, 5946, 6444, 8055, 8919, 9910, 10740, 11892, 14865, 16110, 17838, 19820, 29730, 32220, 35676, 44595, 59460, 89190, 177389, 178380, 354778, 532167, 709556, 886945, 1064334, 1596501, 1773890, 2128668, 2660835, 3193002, 3547780, 5321670, 6386004, 7982505, 10643340, 15965010, 31930020]

約数ペア:

[(1, 31930020), (2, 15965010), (3, 10643340), (4, 7982505), (5, 6386004), (6, 5321670), (9, 3547780), (10, 3193002), (12, 2660835), (15, 2128668), (18, 1773890), (20, 1596501), (30, 1064334), (36, 886945), (45, 709556), (60, 532167), (90, 354778), (179, 178380), (180, 177389), (358, 89190), (537, 59460), (716, 44595), (895, 35676), (991, 32220), (1074, 29730), (1611, 19820), (1790, 17838), (1982, 16110), (2148, 14865), (2685, 11892), (2973, 10740), (3222, 9910), (3580, 8919), (3964, 8055), (4955, 6444), (5370, 5946)]