89731780

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{41}}^2\times {\mathrm{157}}^1$

素因数の和:265

約数の個数: 72

約数和(自身を含む): 205808904

約数和(自身を除く): 116077124

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 41, 68, 82, 85, 157, 164, 170, 205, 314, 340, 410, 628, 697, 785, 820, 1394, 1570, 1681, 2669, 2788, 3140, 3362, 3485, 5338, 6437, 6724, 6970, 8405, 10676, 12874, 13345, 13940, 16810, 25748, 26690, 28577, 32185, 33620, 53380, 57154, 64370, 109429, 114308, 128740, 142885, 218858, 263917, 285770, 437716, 527834, 547145, 571540, 1055668, 1094290, 1319585, 2188580, 2639170, 4486589, 5278340, 8973178, 17946356, 22432945, 44865890, 89731780]

約数ペア:

[(1, 89731780), (2, 44865890), (4, 22432945), (5, 17946356), (10, 8973178), (17, 5278340), (20, 4486589), (34, 2639170), (41, 2188580), (68, 1319585), (82, 1094290), (85, 1055668), (157, 571540), (164, 547145), (170, 527834), (205, 437716), (314, 285770), (340, 263917), (410, 218858), (628, 142885), (697, 128740), (785, 114308), (820, 109429), (1394, 64370), (1570, 57154), (1681, 53380), (2669, 33620), (2788, 32185), (3140, 28577), (3362, 26690), (3485, 25748), (5338, 16810), (6437, 13940), (6724, 13345), (6970, 12874), (8405, 10676)]