64126720

素因数分解:

$2^8\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{421}}^1$

素因数の和:466

約数の個数: 144

約数和(自身を含む): 186314688

約数和(自身を除く): 122187968

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 17, 20, 28, 32, 34, 35, 40, 56, 64, 68, 70, 80, 85, 112, 119, 128, 136, 140, 160, 170, 224, 238, 256, 272, 280, 320, 340, 421, 448, 476, 544, 560, 595, 640, 680, 842, 896, 952, 1088, 1120, 1190, 1280, 1360, 1684, 1792, 1904, 2105, 2176, 2240, 2380, 2720, 2947, 3368, 3808, 4210, 4352, 4480, 4760, 5440, 5894, 6736, 7157, 7616, 8420, 8960, 9520, 10880, 11788, 13472, 14314, 14735, 15232, 16840, 19040, 21760, 23576, 26944, 28628, 29470, 30464, 33680, 35785, 38080, 47152, 50099, 53888, 57256, 58940, 67360, 71570, 76160, 94304, 100198, 107776, 114512, 117880, 134720, 143140, 152320, 188608, 200396, 229024, 235760, 250495, 269440, 286280, 377216, 400792, 458048, 471520, 500990, 538880, 572560, 754432, 801584, 916096, 943040, 1001980, 1145120, 1603168, 1832192, 1886080, 2003960, 2290240, 3206336, 3772160, 4007920, 4580480, 6412672, 8015840, 9160960, 12825344, 16031680, 32063360, 64126720]

約数ペア:

[(1, 64126720), (2, 32063360), (4, 16031680), (5, 12825344), (7, 9160960), (8, 8015840), (10, 6412672), (14, 4580480), (16, 4007920), (17, 3772160), (20, 3206336), (28, 2290240), (32, 2003960), (34, 1886080), (35, 1832192), (40, 1603168), (56, 1145120), (64, 1001980), (68, 943040), (70, 916096), (80, 801584), (85, 754432), (112, 572560), (119, 538880), (128, 500990), (136, 471520), (140, 458048), (160, 400792), (170, 377216), (224, 286280), (238, 269440), (256, 250495), (272, 235760), (280, 229024), (320, 200396), (340, 188608), (421, 152320), (448, 143140), (476, 134720), (544, 117880), (560, 114512), (595, 107776), (640, 100198), (680, 94304), (842, 76160), (896, 71570), (952, 67360), (1088, 58940), (1120, 57256), (1190, 53888), (1280, 50099), (1360, 47152), (1684, 38080), (1792, 35785), (1904, 33680), (2105, 30464), (2176, 29470), (2240, 28628), (2380, 26944), (2720, 23576), (2947, 21760), (3368, 19040), (3808, 16840), (4210, 15232), (4352, 14735), (4480, 14314), (4760, 13472), (5440, 11788), (5894, 10880), (6736, 9520), (7157, 8960), (7616, 8420)]