80462720

素因数分解:

$2^7\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{509}}^1$

素因数の和:560

約数の個数: 128

約数和(自身を含む): 218484000

約数和(自身を除く): 138021280

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 19, 20, 26, 32, 38, 40, 52, 64, 65, 76, 80, 95, 104, 128, 130, 152, 160, 190, 208, 247, 260, 304, 320, 380, 416, 494, 509, 520, 608, 640, 760, 832, 988, 1018, 1040, 1216, 1235, 1520, 1664, 1976, 2036, 2080, 2432, 2470, 2545, 3040, 3952, 4072, 4160, 4940, 5090, 6080, 6617, 7904, 8144, 8320, 9671, 9880, 10180, 12160, 13234, 15808, 16288, 19342, 19760, 20360, 26468, 31616, 32576, 33085, 38684, 39520, 40720, 48355, 52936, 65152, 66170, 77368, 79040, 81440, 96710, 105872, 125723, 132340, 154736, 158080, 162880, 193420, 211744, 251446, 264680, 309472, 325760, 386840, 423488, 502892, 529360, 618944, 628615, 773680, 846976, 1005784, 1058720, 1237888, 1257230, 1547360, 2011568, 2117440, 2514460, 3094720, 4023136, 4234880, 5028920, 6189440, 8046272, 10057840, 16092544, 20115680, 40231360, 80462720]

約数ペア:

[(1, 80462720), (2, 40231360), (4, 20115680), (5, 16092544), (8, 10057840), (10, 8046272), (13, 6189440), (16, 5028920), (19, 4234880), (20, 4023136), (26, 3094720), (32, 2514460), (38, 2117440), (40, 2011568), (52, 1547360), (64, 1257230), (65, 1237888), (76, 1058720), (80, 1005784), (95, 846976), (104, 773680), (128, 628615), (130, 618944), (152, 529360), (160, 502892), (190, 423488), (208, 386840), (247, 325760), (260, 309472), (304, 264680), (320, 251446), (380, 211744), (416, 193420), (494, 162880), (509, 158080), (520, 154736), (608, 132340), (640, 125723), (760, 105872), (832, 96710), (988, 81440), (1018, 79040), (1040, 77368), (1216, 66170), (1235, 65152), (1520, 52936), (1664, 48355), (1976, 40720), (2036, 39520), (2080, 38684), (2432, 33085), (2470, 32576), (2545, 31616), (3040, 26468), (3952, 20360), (4072, 19760), (4160, 19342), (4940, 16288), (5090, 15808), (6080, 13234), (6617, 12160), (7904, 10180), (8144, 9880), (8320, 9671)]