128987640

素因数分解:

$2^3\times 3^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{971}}^1$

素因数の和:1035

約数の個数: 160

約数和(自身を含む): 444573360

約数和(自身を除く): 315585720

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 41, 45, 54, 60, 72, 81, 82, 90, 108, 120, 123, 135, 162, 164, 180, 205, 216, 246, 270, 324, 328, 360, 369, 405, 410, 492, 540, 615, 648, 738, 810, 820, 971, 984, 1080, 1107, 1230, 1476, 1620, 1640, 1845, 1942, 2214, 2460, 2913, 2952, 3240, 3321, 3690, 3884, 4428, 4855, 4920, 5535, 5826, 6642, 7380, 7768, 8739, 8856, 9710, 11070, 11652, 13284, 14565, 14760, 16605, 17478, 19420, 22140, 23304, 26217, 26568, 29130, 33210, 34956, 38840, 39811, 43695, 44280, 52434, 58260, 66420, 69912, 78651, 79622, 87390, 104868, 116520, 119433, 131085, 132840, 157302, 159244, 174780, 199055, 209736, 238866, 262170, 314604, 318488, 349560, 358299, 393255, 398110, 477732, 524340, 597165, 629208, 716598, 786510, 796220, 955464, 1048680, 1074897, 1194330, 1433196, 1573020, 1592440, 1791495, 2149794, 2388660, 2866392, 3146040, 3224691, 3582990, 4299588, 4777320, 5374485, 6449382, 7165980, 8599176, 10748970, 12898764, 14331960, 16123455, 21497940, 25797528, 32246910, 42995880, 64493820, 128987640]

約数ペア:

[(1, 128987640), (2, 64493820), (3, 42995880), (4, 32246910), (5, 25797528), (6, 21497940), (8, 16123455), (9, 14331960), (10, 12898764), (12, 10748970), (15, 8599176), (18, 7165980), (20, 6449382), (24, 5374485), (27, 4777320), (30, 4299588), (36, 3582990), (40, 3224691), (41, 3146040), (45, 2866392), (54, 2388660), (60, 2149794), (72, 1791495), (81, 1592440), (82, 1573020), (90, 1433196), (108, 1194330), (120, 1074897), (123, 1048680), (135, 955464), (162, 796220), (164, 786510), (180, 716598), (205, 629208), (216, 597165), (246, 524340), (270, 477732), (324, 398110), (328, 393255), (360, 358299), (369, 349560), (405, 318488), (410, 314604), (492, 262170), (540, 238866), (615, 209736), (648, 199055), (738, 174780), (810, 159244), (820, 157302), (971, 132840), (984, 131085), (1080, 119433), (1107, 116520), (1230, 104868), (1476, 87390), (1620, 79622), (1640, 78651), (1845, 69912), (1942, 66420), (2214, 58260), (2460, 52434), (2913, 44280), (2952, 43695), (3240, 39811), (3321, 38840), (3690, 34956), (3884, 33210), (4428, 29130), (4855, 26568), (4920, 26217), (5535, 23304), (5826, 22140), (6642, 19420), (7380, 17478), (7768, 16605), (8739, 14760), (8856, 14565), (9710, 13284), (11070, 11652)]