20560428

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{83}}^1\times {\mathrm{983}}^1$

素因数の和:1083

約数の個数: 72

約数和(自身を含む): 60173568

約数和(自身を除く): 39613140

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 83, 84, 126, 166, 249, 252, 332, 498, 581, 747, 983, 996, 1162, 1494, 1743, 1966, 2324, 2949, 2988, 3486, 3932, 5229, 5898, 6881, 6972, 8847, 10458, 11796, 13762, 17694, 20643, 20916, 27524, 35388, 41286, 61929, 81589, 82572, 123858, 163178, 244767, 247716, 326356, 489534, 571123, 734301, 979068, 1142246, 1468602, 1713369, 2284492, 2937204, 3426738, 5140107, 6853476, 10280214, 20560428]

約数ペア:

[(1, 20560428), (2, 10280214), (3, 6853476), (4, 5140107), (6, 3426738), (7, 2937204), (9, 2284492), (12, 1713369), (14, 1468602), (18, 1142246), (21, 979068), (28, 734301), (36, 571123), (42, 489534), (63, 326356), (83, 247716), (84, 244767), (126, 163178), (166, 123858), (249, 82572), (252, 81589), (332, 61929), (498, 41286), (581, 35388), (747, 27524), (983, 20916), (996, 20643), (1162, 17694), (1494, 13762), (1743, 11796), (1966, 10458), (2324, 8847), (2949, 6972), (2988, 6881), (3486, 5898), (3932, 5229)]