78718640

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{983}}^1$

素因数の和:1027

約数の個数: 160

約数和(自身を含む): 245984256

約数和(自身を除く): 167265616

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 13, 14, 16, 20, 22, 26, 28, 35, 40, 44, 52, 55, 56, 65, 70, 77, 80, 88, 91, 104, 110, 112, 130, 140, 143, 154, 176, 182, 208, 220, 260, 280, 286, 308, 364, 385, 440, 455, 520, 560, 572, 616, 715, 728, 770, 880, 910, 983, 1001, 1040, 1144, 1232, 1430, 1456, 1540, 1820, 1966, 2002, 2288, 2860, 3080, 3640, 3932, 4004, 4915, 5005, 5720, 6160, 6881, 7280, 7864, 8008, 9830, 10010, 10813, 11440, 12779, 13762, 15728, 16016, 19660, 20020, 21626, 25558, 27524, 34405, 39320, 40040, 43252, 51116, 54065, 55048, 63895, 68810, 75691, 78640, 80080, 86504, 89453, 102232, 108130, 110096, 127790, 137620, 140569, 151382, 173008, 178906, 204464, 216260, 255580, 275240, 281138, 302764, 357812, 378455, 432520, 447265, 511160, 550480, 562276, 605528, 702845, 715624, 756910, 865040, 894530, 983983, 1022320, 1124552, 1211056, 1405690, 1431248, 1513820, 1789060, 1967966, 2249104, 2811380, 3027640, 3578120, 3935932, 4919915, 5622760, 6055280, 7156240, 7871864, 9839830, 11245520, 15743728, 19679660, 39359320, 78718640]

約数ペア:

[(1, 78718640), (2, 39359320), (4, 19679660), (5, 15743728), (7, 11245520), (8, 9839830), (10, 7871864), (11, 7156240), (13, 6055280), (14, 5622760), (16, 4919915), (20, 3935932), (22, 3578120), (26, 3027640), (28, 2811380), (35, 2249104), (40, 1967966), (44, 1789060), (52, 1513820), (55, 1431248), (56, 1405690), (65, 1211056), (70, 1124552), (77, 1022320), (80, 983983), (88, 894530), (91, 865040), (104, 756910), (110, 715624), (112, 702845), (130, 605528), (140, 562276), (143, 550480), (154, 511160), (176, 447265), (182, 432520), (208, 378455), (220, 357812), (260, 302764), (280, 281138), (286, 275240), (308, 255580), (364, 216260), (385, 204464), (440, 178906), (455, 173008), (520, 151382), (560, 140569), (572, 137620), (616, 127790), (715, 110096), (728, 108130), (770, 102232), (880, 89453), (910, 86504), (983, 80080), (1001, 78640), (1040, 75691), (1144, 68810), (1232, 63895), (1430, 55048), (1456, 54065), (1540, 51116), (1820, 43252), (1966, 40040), (2002, 39320), (2288, 34405), (2860, 27524), (3080, 25558), (3640, 21626), (3932, 20020), (4004, 19660), (4915, 16016), (5005, 15728), (5720, 13762), (6160, 12779), (6881, 11440), (7280, 10813), (7864, 10010), (8008, 9830)]