181507480

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{1901}}^1$

素因数の和:1961

約数の個数: 128

約数和(自身を含む): 525864960

約数和(自身を除く): 344357480

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 20, 22, 28, 31, 35, 40, 44, 55, 56, 62, 70, 77, 88, 110, 124, 140, 154, 155, 217, 220, 248, 280, 308, 310, 341, 385, 434, 440, 616, 620, 682, 770, 868, 1085, 1240, 1364, 1540, 1705, 1736, 1901, 2170, 2387, 2728, 3080, 3410, 3802, 4340, 4774, 6820, 7604, 8680, 9505, 9548, 11935, 13307, 13640, 15208, 19010, 19096, 20911, 23870, 26614, 38020, 41822, 47740, 53228, 58931, 66535, 76040, 83644, 95480, 104555, 106456, 117862, 133070, 146377, 167288, 209110, 235724, 266140, 292754, 294655, 412517, 418220, 471448, 532280, 585508, 589310, 648241, 731885, 825034, 836440, 1171016, 1178620, 1296482, 1463770, 1650068, 2062585, 2357240, 2592964, 2927540, 3241205, 3300136, 4125170, 4537687, 5185928, 5855080, 6482410, 8250340, 9075374, 12964820, 16500680, 18150748, 22688435, 25929640, 36301496, 45376870, 90753740, 181507480]

約数ペア:

[(1, 181507480), (2, 90753740), (4, 45376870), (5, 36301496), (7, 25929640), (8, 22688435), (10, 18150748), (11, 16500680), (14, 12964820), (20, 9075374), (22, 8250340), (28, 6482410), (31, 5855080), (35, 5185928), (40, 4537687), (44, 4125170), (55, 3300136), (56, 3241205), (62, 2927540), (70, 2592964), (77, 2357240), (88, 2062585), (110, 1650068), (124, 1463770), (140, 1296482), (154, 1178620), (155, 1171016), (217, 836440), (220, 825034), (248, 731885), (280, 648241), (308, 589310), (310, 585508), (341, 532280), (385, 471448), (434, 418220), (440, 412517), (616, 294655), (620, 292754), (682, 266140), (770, 235724), (868, 209110), (1085, 167288), (1240, 146377), (1364, 133070), (1540, 117862), (1705, 106456), (1736, 104555), (1901, 95480), (2170, 83644), (2387, 76040), (2728, 66535), (3080, 58931), (3410, 53228), (3802, 47740), (4340, 41822), (4774, 38020), (6820, 26614), (7604, 23870), (8680, 20911), (9505, 19096), (9548, 19010), (11935, 15208), (13307, 13640)]