2649220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{127}}^1\times {\mathrm{149}}^1$

素因数の和:292

約数の個数: 48

約数和(自身を含む): 6451200

約数和(自身を除く): 3801980

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 127, 140, 149, 254, 298, 508, 596, 635, 745, 889, 1043, 1270, 1490, 1778, 2086, 2540, 2980, 3556, 4172, 4445, 5215, 8890, 10430, 17780, 18923, 20860, 37846, 75692, 94615, 132461, 189230, 264922, 378460, 529844, 662305, 1324610, 2649220]

約数ペア:

[(1, 2649220), (2, 1324610), (4, 662305), (5, 529844), (7, 378460), (10, 264922), (14, 189230), (20, 132461), (28, 94615), (35, 75692), (70, 37846), (127, 20860), (140, 18923), (149, 17780), (254, 10430), (298, 8890), (508, 5215), (596, 4445), (635, 4172), (745, 3556), (889, 2980), (1043, 2540), (1270, 2086), (1490, 1778)]