27988740

素因数分解:

$2^2\times 3^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{443}}^1$

素因数の和:480

約数の個数: 144

約数和(自身を含む): 95030208

約数和(自身を除く): 67041468

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 27, 30, 36, 39, 45, 52, 54, 60, 65, 78, 81, 90, 108, 117, 130, 135, 156, 162, 180, 195, 234, 243, 260, 270, 324, 351, 390, 405, 443, 468, 486, 540, 585, 702, 780, 810, 886, 972, 1053, 1170, 1215, 1329, 1404, 1620, 1755, 1772, 2106, 2215, 2340, 2430, 2658, 3159, 3510, 3987, 4212, 4430, 4860, 5265, 5316, 5759, 6318, 6645, 7020, 7974, 8860, 10530, 11518, 11961, 12636, 13290, 15795, 15948, 17277, 19935, 21060, 23036, 23922, 26580, 28795, 31590, 34554, 35883, 39870, 47844, 51831, 57590, 59805, 63180, 69108, 71766, 79740, 86385, 103662, 107649, 115180, 119610, 143532, 155493, 172770, 179415, 207324, 215298, 239220, 259155, 310986, 345540, 358830, 430596, 466479, 518310, 538245, 621972, 717660, 777465, 932958, 1036620, 1076490, 1399437, 1554930, 1865916, 2152980, 2332395, 2798874, 3109860, 4664790, 5597748, 6997185, 9329580, 13994370, 27988740]

約数ペア:

[(1, 27988740), (2, 13994370), (3, 9329580), (4, 6997185), (5, 5597748), (6, 4664790), (9, 3109860), (10, 2798874), (12, 2332395), (13, 2152980), (15, 1865916), (18, 1554930), (20, 1399437), (26, 1076490), (27, 1036620), (30, 932958), (36, 777465), (39, 717660), (45, 621972), (52, 538245), (54, 518310), (60, 466479), (65, 430596), (78, 358830), (81, 345540), (90, 310986), (108, 259155), (117, 239220), (130, 215298), (135, 207324), (156, 179415), (162, 172770), (180, 155493), (195, 143532), (234, 119610), (243, 115180), (260, 107649), (270, 103662), (324, 86385), (351, 79740), (390, 71766), (405, 69108), (443, 63180), (468, 59805), (486, 57590), (540, 51831), (585, 47844), (702, 39870), (780, 35883), (810, 34554), (886, 31590), (972, 28795), (1053, 26580), (1170, 23922), (1215, 23036), (1329, 21060), (1404, 19935), (1620, 17277), (1755, 15948), (1772, 15795), (2106, 13290), (2215, 12636), (2340, 11961), (2430, 11518), (2658, 10530), (3159, 8860), (3510, 7974), (3987, 7020), (4212, 6645), (4430, 6318), (4860, 5759), (5265, 5316)]