20156220

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{941}}^1$

素因数の和:980

約数の個数: 144

約数和(自身を含む): 74063808

約数和(自身を除く): 53907588

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 17, 18, 20, 21, 28, 30, 34, 35, 36, 42, 45, 51, 60, 63, 68, 70, 84, 85, 90, 102, 105, 119, 126, 140, 153, 170, 180, 204, 210, 238, 252, 255, 306, 315, 340, 357, 420, 476, 510, 595, 612, 630, 714, 765, 941, 1020, 1071, 1190, 1260, 1428, 1530, 1785, 1882, 2142, 2380, 2823, 3060, 3570, 3764, 4284, 4705, 5355, 5646, 6587, 7140, 8469, 9410, 10710, 11292, 13174, 14115, 15997, 16938, 18820, 19761, 21420, 26348, 28230, 31994, 32935, 33876, 39522, 42345, 47991, 56460, 59283, 63988, 65870, 79044, 79985, 84690, 95982, 98805, 111979, 118566, 131740, 143973, 159970, 169380, 191964, 197610, 223958, 237132, 239955, 287946, 296415, 319940, 335937, 395220, 447916, 479910, 559895, 575892, 592830, 671874, 719865, 959820, 1007811, 1119790, 1185660, 1343748, 1439730, 1679685, 2015622, 2239580, 2879460, 3359370, 4031244, 5039055, 6718740, 10078110, 20156220]

約数ペア:

[(1, 20156220), (2, 10078110), (3, 6718740), (4, 5039055), (5, 4031244), (6, 3359370), (7, 2879460), (9, 2239580), (10, 2015622), (12, 1679685), (14, 1439730), (15, 1343748), (17, 1185660), (18, 1119790), (20, 1007811), (21, 959820), (28, 719865), (30, 671874), (34, 592830), (35, 575892), (36, 559895), (42, 479910), (45, 447916), (51, 395220), (60, 335937), (63, 319940), (68, 296415), (70, 287946), (84, 239955), (85, 237132), (90, 223958), (102, 197610), (105, 191964), (119, 169380), (126, 159970), (140, 143973), (153, 131740), (170, 118566), (180, 111979), (204, 98805), (210, 95982), (238, 84690), (252, 79985), (255, 79044), (306, 65870), (315, 63988), (340, 59283), (357, 56460), (420, 47991), (476, 42345), (510, 39522), (595, 33876), (612, 32935), (630, 31994), (714, 28230), (765, 26348), (941, 21420), (1020, 19761), (1071, 18820), (1190, 16938), (1260, 15997), (1428, 14115), (1530, 13174), (1785, 11292), (1882, 10710), (2142, 9410), (2380, 8469), (2823, 7140), (3060, 6587), (3570, 5646), (3764, 5355), (4284, 4705)]