81387792

素因数分解:

$2^4\times 3^2\times {\mathrm{19}}^1\times {\mathrm{151}}^1\times {\mathrm{197}}^1$

素因数の和:381

約数の個数: 120

約数和(自身を含む): 242573760

約数和(自身を除く): 161185968

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 19, 24, 36, 38, 48, 57, 72, 76, 114, 144, 151, 152, 171, 197, 228, 302, 304, 342, 394, 453, 456, 591, 604, 684, 788, 906, 912, 1182, 1208, 1359, 1368, 1576, 1773, 1812, 2364, 2416, 2718, 2736, 2869, 3152, 3546, 3624, 3743, 4728, 5436, 5738, 7092, 7248, 7486, 8607, 9456, 10872, 11229, 11476, 14184, 14972, 17214, 21744, 22458, 22952, 25821, 28368, 29747, 29944, 33687, 34428, 44916, 45904, 51642, 59494, 59888, 67374, 68856, 89241, 89832, 103284, 118988, 134748, 137712, 178482, 179664, 206568, 237976, 267723, 269496, 356964, 413136, 475952, 535446, 538992, 565193, 713928, 1070892, 1130386, 1427856, 1695579, 2141784, 2260772, 3391158, 4283568, 4521544, 5086737, 6782316, 9043088, 10173474, 13564632, 20346948, 27129264, 40693896, 81387792]

約数ペア:

[(1, 81387792), (2, 40693896), (3, 27129264), (4, 20346948), (6, 13564632), (8, 10173474), (9, 9043088), (12, 6782316), (16, 5086737), (18, 4521544), (19, 4283568), (24, 3391158), (36, 2260772), (38, 2141784), (48, 1695579), (57, 1427856), (72, 1130386), (76, 1070892), (114, 713928), (144, 565193), (151, 538992), (152, 535446), (171, 475952), (197, 413136), (228, 356964), (302, 269496), (304, 267723), (342, 237976), (394, 206568), (453, 179664), (456, 178482), (591, 137712), (604, 134748), (684, 118988), (788, 103284), (906, 89832), (912, 89241), (1182, 68856), (1208, 67374), (1359, 59888), (1368, 59494), (1576, 51642), (1773, 45904), (1812, 44916), (2364, 34428), (2416, 33687), (2718, 29944), (2736, 29747), (2869, 28368), (3152, 25821), (3546, 22952), (3624, 22458), (3743, 21744), (4728, 17214), (5436, 14972), (5738, 14184), (7092, 11476), (7248, 11229), (7486, 10872), (8607, 9456)]