290141720

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{491}}^1$

素因数の和:609

約数の個数: 128

約数和(自身を含む): 765158400

約数和(自身を除く): 475016680

約数列:

[1, 2, 4, 5, 8, 10, 11, 17, 20, 22, 34, 40, 44, 55, 68, 79, 85, 88, 110, 136, 158, 170, 187, 220, 316, 340, 374, 395, 440, 491, 632, 680, 748, 790, 869, 935, 982, 1343, 1496, 1580, 1738, 1870, 1964, 2455, 2686, 3160, 3476, 3740, 3928, 4345, 4910, 5372, 5401, 6715, 6952, 7480, 8347, 8690, 9820, 10744, 10802, 13430, 14773, 16694, 17380, 19640, 21604, 26860, 27005, 29546, 33388, 34760, 38789, 41735, 43208, 53720, 54010, 59092, 66776, 73865, 77578, 83470, 91817, 108020, 118184, 147730, 155156, 166940, 183634, 193945, 216040, 295460, 310312, 333880, 367268, 387890, 426679, 459085, 590920, 659413, 734536, 775780, 853358, 918170, 1318826, 1551560, 1706716, 1836340, 2133395, 2637652, 3297065, 3413432, 3672680, 4266790, 5275304, 6594130, 7253543, 8533580, 13188260, 14507086, 17067160, 26376520, 29014172, 36267715, 58028344, 72535430, 145070860, 290141720]

約数ペア:

[(1, 290141720), (2, 145070860), (4, 72535430), (5, 58028344), (8, 36267715), (10, 29014172), (11, 26376520), (17, 17067160), (20, 14507086), (22, 13188260), (34, 8533580), (40, 7253543), (44, 6594130), (55, 5275304), (68, 4266790), (79, 3672680), (85, 3413432), (88, 3297065), (110, 2637652), (136, 2133395), (158, 1836340), (170, 1706716), (187, 1551560), (220, 1318826), (316, 918170), (340, 853358), (374, 775780), (395, 734536), (440, 659413), (491, 590920), (632, 459085), (680, 426679), (748, 387890), (790, 367268), (869, 333880), (935, 310312), (982, 295460), (1343, 216040), (1496, 193945), (1580, 183634), (1738, 166940), (1870, 155156), (1964, 147730), (2455, 118184), (2686, 108020), (3160, 91817), (3476, 83470), (3740, 77578), (3928, 73865), (4345, 66776), (4910, 59092), (5372, 54010), (5401, 53720), (6715, 43208), (6952, 41735), (7480, 38789), (8347, 34760), (8690, 33388), (9820, 29546), (10744, 27005), (10802, 26860), (13430, 21604), (14773, 19640), (16694, 17380)]