27678420

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{1997}}^1$

素因数の和:2030

約数の個数: 144

約数和(自身を含む): 104727168

約数和(自身を除く): 77048748

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 11, 12, 14, 15, 18, 20, 21, 22, 28, 30, 33, 35, 36, 42, 44, 45, 55, 60, 63, 66, 70, 77, 84, 90, 99, 105, 110, 126, 132, 140, 154, 165, 180, 198, 210, 220, 231, 252, 308, 315, 330, 385, 396, 420, 462, 495, 630, 660, 693, 770, 924, 990, 1155, 1260, 1386, 1540, 1980, 1997, 2310, 2772, 3465, 3994, 4620, 5991, 6930, 7988, 9985, 11982, 13860, 13979, 17973, 19970, 21967, 23964, 27958, 29955, 35946, 39940, 41937, 43934, 55916, 59910, 65901, 69895, 71892, 83874, 87868, 89865, 109835, 119820, 125811, 131802, 139790, 153769, 167748, 179730, 197703, 209685, 219670, 251622, 263604, 279580, 307538, 329505, 359460, 395406, 419370, 439340, 461307, 503244, 615076, 629055, 659010, 768845, 790812, 838740, 922614, 988515, 1258110, 1318020, 1383921, 1537690, 1845228, 1977030, 2306535, 2516220, 2767842, 3075380, 3954060, 4613070, 5535684, 6919605, 9226140, 13839210, 27678420]

約数ペア:

[(1, 27678420), (2, 13839210), (3, 9226140), (4, 6919605), (5, 5535684), (6, 4613070), (7, 3954060), (9, 3075380), (10, 2767842), (11, 2516220), (12, 2306535), (14, 1977030), (15, 1845228), (18, 1537690), (20, 1383921), (21, 1318020), (22, 1258110), (28, 988515), (30, 922614), (33, 838740), (35, 790812), (36, 768845), (42, 659010), (44, 629055), (45, 615076), (55, 503244), (60, 461307), (63, 439340), (66, 419370), (70, 395406), (77, 359460), (84, 329505), (90, 307538), (99, 279580), (105, 263604), (110, 251622), (126, 219670), (132, 209685), (140, 197703), (154, 179730), (165, 167748), (180, 153769), (198, 139790), (210, 131802), (220, 125811), (231, 119820), (252, 109835), (308, 89865), (315, 87868), (330, 83874), (385, 71892), (396, 69895), (420, 65901), (462, 59910), (495, 55916), (630, 43934), (660, 41937), (693, 39940), (770, 35946), (924, 29955), (990, 27958), (1155, 23964), (1260, 21967), (1386, 19970), (1540, 17973), (1980, 13979), (1997, 13860), (2310, 11982), (2772, 9985), (3465, 7988), (3994, 6930), (4620, 5991)]