80895760

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^2\times {\mathrm{61}}^1\times {\mathrm{137}}^1$

素因数の和:233

約数の個数: 120

約数和(自身を含む): 211658328

約数和(自身を除く): 130762568

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 61, 80, 88, 110, 121, 122, 137, 176, 220, 242, 244, 274, 305, 440, 484, 488, 548, 605, 610, 671, 685, 880, 968, 976, 1096, 1210, 1220, 1342, 1370, 1507, 1936, 2192, 2420, 2440, 2684, 2740, 3014, 3355, 4840, 4880, 5368, 5480, 6028, 6710, 7381, 7535, 8357, 9680, 10736, 10960, 12056, 13420, 14762, 15070, 16577, 16714, 24112, 26840, 29524, 30140, 33154, 33428, 36905, 41785, 53680, 59048, 60280, 66308, 66856, 73810, 82885, 83570, 91927, 118096, 120560, 132616, 133712, 147620, 165770, 167140, 183854, 265232, 295240, 331540, 334280, 367708, 459635, 590480, 663080, 668560, 735416, 919270, 1011197, 1326160, 1470832, 1838540, 2022394, 3677080, 4044788, 5055985, 7354160, 8089576, 10111970, 16179152, 20223940, 40447880, 80895760]

約数ペア:

[(1, 80895760), (2, 40447880), (4, 20223940), (5, 16179152), (8, 10111970), (10, 8089576), (11, 7354160), (16, 5055985), (20, 4044788), (22, 3677080), (40, 2022394), (44, 1838540), (55, 1470832), (61, 1326160), (80, 1011197), (88, 919270), (110, 735416), (121, 668560), (122, 663080), (137, 590480), (176, 459635), (220, 367708), (242, 334280), (244, 331540), (274, 295240), (305, 265232), (440, 183854), (484, 167140), (488, 165770), (548, 147620), (605, 133712), (610, 132616), (671, 120560), (685, 118096), (880, 91927), (968, 83570), (976, 82885), (1096, 73810), (1210, 66856), (1220, 66308), (1342, 60280), (1370, 59048), (1507, 53680), (1936, 41785), (2192, 36905), (2420, 33428), (2440, 33154), (2684, 30140), (2740, 29524), (3014, 26840), (3355, 24112), (4840, 16714), (4880, 16577), (5368, 15070), (5480, 14762), (6028, 13420), (6710, 12056), (7381, 10960), (7535, 10736), (8357, 9680)]