128753920

素因数分解:

$2^8\times 5^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{97}}^1$

素因数の和:196

約数の個数: 144

約数和(自身を含む): 335322288

約数和(自身を除く): 206568368

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 61, 64, 68, 80, 85, 97, 122, 128, 136, 160, 170, 194, 244, 256, 272, 305, 320, 340, 388, 485, 488, 544, 610, 640, 680, 776, 970, 976, 1037, 1088, 1220, 1280, 1360, 1552, 1649, 1940, 1952, 2074, 2176, 2440, 2720, 3104, 3298, 3880, 3904, 4148, 4352, 4880, 5185, 5440, 5917, 6208, 6596, 7760, 7808, 8245, 8296, 9760, 10370, 10880, 11834, 12416, 13192, 15520, 15616, 16490, 16592, 19520, 20740, 21760, 23668, 24832, 26384, 29585, 31040, 32980, 33184, 39040, 41480, 47336, 52768, 59170, 62080, 65960, 66368, 78080, 82960, 94672, 100589, 105536, 118340, 124160, 131920, 132736, 165920, 189344, 201178, 211072, 236680, 263840, 265472, 331840, 378688, 402356, 422144, 473360, 502945, 527680, 663680, 757376, 804712, 946720, 1005890, 1055360, 1327360, 1514752, 1609424, 1893440, 2011780, 2110720, 3218848, 3786880, 4023560, 6437696, 7573760, 8047120, 12875392, 16094240, 25750784, 32188480, 64376960, 128753920]

約数ペア:

[(1, 128753920), (2, 64376960), (4, 32188480), (5, 25750784), (8, 16094240), (10, 12875392), (16, 8047120), (17, 7573760), (20, 6437696), (32, 4023560), (34, 3786880), (40, 3218848), (61, 2110720), (64, 2011780), (68, 1893440), (80, 1609424), (85, 1514752), (97, 1327360), (122, 1055360), (128, 1005890), (136, 946720), (160, 804712), (170, 757376), (194, 663680), (244, 527680), (256, 502945), (272, 473360), (305, 422144), (320, 402356), (340, 378688), (388, 331840), (485, 265472), (488, 263840), (544, 236680), (610, 211072), (640, 201178), (680, 189344), (776, 165920), (970, 132736), (976, 131920), (1037, 124160), (1088, 118340), (1220, 105536), (1280, 100589), (1360, 94672), (1552, 82960), (1649, 78080), (1940, 66368), (1952, 65960), (2074, 62080), (2176, 59170), (2440, 52768), (2720, 47336), (3104, 41480), (3298, 39040), (3880, 33184), (3904, 32980), (4148, 31040), (4352, 29585), (4880, 26384), (5185, 24832), (5440, 23668), (5917, 21760), (6208, 20740), (6596, 19520), (7760, 16592), (7808, 16490), (8245, 15616), (8296, 15520), (9760, 13192), (10370, 12416), (10880, 11834)]