20047040

素因数分解:

$2^6\times 5^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{79}}^1$

素因数の和:170

約数の個数: 112

約数和(自身を含む): 52913280

約数和(自身を除く): 32866240

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 61, 64, 65, 79, 80, 104, 122, 130, 158, 160, 208, 244, 260, 305, 316, 320, 395, 416, 488, 520, 610, 632, 790, 793, 832, 976, 1027, 1040, 1220, 1264, 1580, 1586, 1952, 2054, 2080, 2440, 2528, 3160, 3172, 3904, 3965, 4108, 4160, 4819, 4880, 5056, 5135, 6320, 6344, 7930, 8216, 9638, 9760, 10270, 12640, 12688, 15860, 16432, 19276, 19520, 20540, 24095, 25280, 25376, 31720, 32864, 38552, 41080, 48190, 50752, 62647, 63440, 65728, 77104, 82160, 96380, 125294, 126880, 154208, 164320, 192760, 250588, 253760, 308416, 313235, 328640, 385520, 501176, 626470, 771040, 1002352, 1252940, 1542080, 2004704, 2505880, 4009408, 5011760, 10023520, 20047040]

約数ペア:

[(1, 20047040), (2, 10023520), (4, 5011760), (5, 4009408), (8, 2505880), (10, 2004704), (13, 1542080), (16, 1252940), (20, 1002352), (26, 771040), (32, 626470), (40, 501176), (52, 385520), (61, 328640), (64, 313235), (65, 308416), (79, 253760), (80, 250588), (104, 192760), (122, 164320), (130, 154208), (158, 126880), (160, 125294), (208, 96380), (244, 82160), (260, 77104), (305, 65728), (316, 63440), (320, 62647), (395, 50752), (416, 48190), (488, 41080), (520, 38552), (610, 32864), (632, 31720), (790, 25376), (793, 25280), (832, 24095), (976, 20540), (1027, 19520), (1040, 19276), (1220, 16432), (1264, 15860), (1580, 12688), (1586, 12640), (1952, 10270), (2054, 9760), (2080, 9638), (2440, 8216), (2528, 7930), (3160, 6344), (3172, 6320), (3904, 5135), (3965, 5056), (4108, 4880), (4160, 4819)]