18416440

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{73}}^1$

素因数の和:161

約数の個数: 128

約数和(自身を含む): 51788160

約数和(自身を除く): 33371720

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 17, 20, 28, 34, 35, 40, 53, 56, 68, 70, 73, 85, 106, 119, 136, 140, 146, 170, 212, 238, 265, 280, 292, 340, 365, 371, 424, 476, 511, 530, 584, 595, 680, 730, 742, 901, 952, 1022, 1060, 1190, 1241, 1460, 1484, 1802, 1855, 2044, 2120, 2380, 2482, 2555, 2920, 2968, 3604, 3710, 3869, 4088, 4505, 4760, 4964, 5110, 6205, 6307, 7208, 7420, 7738, 8687, 9010, 9928, 10220, 12410, 12614, 14840, 15476, 17374, 18020, 19345, 20440, 24820, 25228, 27083, 30952, 31535, 34748, 36040, 38690, 43435, 49640, 50456, 54166, 63070, 65773, 69496, 77380, 86870, 108332, 126140, 131546, 135415, 154760, 173740, 216664, 252280, 263092, 270830, 328865, 347480, 460411, 526184, 541660, 657730, 920822, 1083320, 1315460, 1841644, 2302055, 2630920, 3683288, 4604110, 9208220, 18416440]

約数ペア:

[(1, 18416440), (2, 9208220), (4, 4604110), (5, 3683288), (7, 2630920), (8, 2302055), (10, 1841644), (14, 1315460), (17, 1083320), (20, 920822), (28, 657730), (34, 541660), (35, 526184), (40, 460411), (53, 347480), (56, 328865), (68, 270830), (70, 263092), (73, 252280), (85, 216664), (106, 173740), (119, 154760), (136, 135415), (140, 131546), (146, 126140), (170, 108332), (212, 86870), (238, 77380), (265, 69496), (280, 65773), (292, 63070), (340, 54166), (365, 50456), (371, 49640), (424, 43435), (476, 38690), (511, 36040), (530, 34748), (584, 31535), (595, 30952), (680, 27083), (730, 25228), (742, 24820), (901, 20440), (952, 19345), (1022, 18020), (1060, 17374), (1190, 15476), (1241, 14840), (1460, 12614), (1484, 12410), (1802, 10220), (1855, 9928), (2044, 9010), (2120, 8687), (2380, 7738), (2482, 7420), (2555, 7208), (2920, 6307), (2968, 6205), (3604, 5110), (3710, 4964), (3869, 4760), (4088, 4505)]