28945440

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{20101}}^1$

素因数の和:20122

約数の個数: 72

約数和(自身を含む): 98781228

約数和(自身を除く): 69835788

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 72, 80, 90, 96, 120, 144, 160, 180, 240, 288, 360, 480, 720, 1440, 20101, 40202, 60303, 80404, 100505, 120606, 160808, 180909, 201010, 241212, 301515, 321616, 361818, 402020, 482424, 603030, 643232, 723636, 804040, 904545, 964848, 1206060, 1447272, 1608080, 1809090, 1929696, 2412120, 2894544, 3216160, 3618180, 4824240, 5789088, 7236360, 9648480, 14472720, 28945440]

約数ペア:

[(1, 28945440), (2, 14472720), (3, 9648480), (4, 7236360), (5, 5789088), (6, 4824240), (8, 3618180), (9, 3216160), (10, 2894544), (12, 2412120), (15, 1929696), (16, 1809090), (18, 1608080), (20, 1447272), (24, 1206060), (30, 964848), (32, 904545), (36, 804040), (40, 723636), (45, 643232), (48, 603030), (60, 482424), (72, 402020), (80, 361818), (90, 321616), (96, 301515), (120, 241212), (144, 201010), (160, 180909), (180, 160808), (240, 120606), (288, 100505), (360, 80404), (480, 60303), (720, 40202), (1440, 20101)]