21823360

素因数分解:

$2^7\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1$

素因数の和:136

約数の個数: 128

約数和(自身を含む): 58433760

約数和(自身を除く): 36610400

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 43, 52, 61, 64, 65, 80, 86, 104, 122, 128, 130, 160, 172, 208, 215, 244, 260, 305, 320, 344, 416, 430, 488, 520, 559, 610, 640, 688, 793, 832, 860, 976, 1040, 1118, 1220, 1376, 1586, 1664, 1720, 1952, 2080, 2236, 2440, 2623, 2752, 2795, 3172, 3440, 3904, 3965, 4160, 4472, 4880, 5246, 5504, 5590, 6344, 6880, 7808, 7930, 8320, 8944, 9760, 10492, 11180, 12688, 13115, 13760, 15860, 17888, 19520, 20984, 22360, 25376, 26230, 27520, 31720, 34099, 35776, 39040, 41968, 44720, 50752, 52460, 63440, 68198, 71552, 83936, 89440, 101504, 104920, 126880, 136396, 167872, 170495, 178880, 209840, 253760, 272792, 335744, 340990, 357760, 419680, 507520, 545584, 681980, 839360, 1091168, 1363960, 1678720, 2182336, 2727920, 4364672, 5455840, 10911680, 21823360]

約数ペア:

[(1, 21823360), (2, 10911680), (4, 5455840), (5, 4364672), (8, 2727920), (10, 2182336), (13, 1678720), (16, 1363960), (20, 1091168), (26, 839360), (32, 681980), (40, 545584), (43, 507520), (52, 419680), (61, 357760), (64, 340990), (65, 335744), (80, 272792), (86, 253760), (104, 209840), (122, 178880), (128, 170495), (130, 167872), (160, 136396), (172, 126880), (208, 104920), (215, 101504), (244, 89440), (260, 83936), (305, 71552), (320, 68198), (344, 63440), (416, 52460), (430, 50752), (488, 44720), (520, 41968), (559, 39040), (610, 35776), (640, 34099), (688, 31720), (793, 27520), (832, 26230), (860, 25376), (976, 22360), (1040, 20984), (1118, 19520), (1220, 17888), (1376, 15860), (1586, 13760), (1664, 13115), (1720, 12688), (1952, 11180), (2080, 10492), (2236, 9760), (2440, 8944), (2623, 8320), (2752, 7930), (2795, 7808), (3172, 6880), (3440, 6344), (3904, 5590), (3965, 5504), (4160, 5246), (4472, 4880)]