197492740

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{73}}^2\times {\mathrm{109}}^1$

素因数の和:281

約数の個数: 72

約数和(自身を含む): 449313480

約数和(自身を除く): 251820740

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 73, 85, 109, 146, 170, 218, 292, 340, 365, 436, 545, 730, 1090, 1241, 1460, 1853, 2180, 2482, 3706, 4964, 5329, 6205, 7412, 7957, 9265, 10658, 12410, 15914, 18530, 21316, 24820, 26645, 31828, 37060, 39785, 53290, 79570, 90593, 106580, 135269, 159140, 181186, 270538, 362372, 452965, 541076, 580861, 676345, 905930, 1161722, 1352690, 1811860, 2323444, 2705380, 2904305, 5808610, 9874637, 11617220, 19749274, 39498548, 49373185, 98746370, 197492740]

約数ペア:

[(1, 197492740), (2, 98746370), (4, 49373185), (5, 39498548), (10, 19749274), (17, 11617220), (20, 9874637), (34, 5808610), (68, 2904305), (73, 2705380), (85, 2323444), (109, 1811860), (146, 1352690), (170, 1161722), (218, 905930), (292, 676345), (340, 580861), (365, 541076), (436, 452965), (545, 362372), (730, 270538), (1090, 181186), (1241, 159140), (1460, 135269), (1853, 106580), (2180, 90593), (2482, 79570), (3706, 53290), (4964, 39785), (5329, 37060), (6205, 31828), (7412, 26645), (7957, 24820), (9265, 21316), (10658, 18530), (12410, 15914)]