64942720

素因数分解:

$2^7\times 5^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{127}}^1$

素因数の和:210

約数の個数: 128

約数和(自身を含む): 169205760

約数和(自身を除く): 104263040

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 47, 64, 68, 80, 85, 94, 127, 128, 136, 160, 170, 188, 235, 254, 272, 320, 340, 376, 470, 508, 544, 635, 640, 680, 752, 799, 940, 1016, 1088, 1270, 1360, 1504, 1598, 1880, 2032, 2159, 2176, 2540, 2720, 3008, 3196, 3760, 3995, 4064, 4318, 5080, 5440, 5969, 6016, 6392, 7520, 7990, 8128, 8636, 10160, 10795, 10880, 11938, 12784, 15040, 15980, 16256, 17272, 20320, 21590, 23876, 25568, 29845, 30080, 31960, 34544, 40640, 43180, 47752, 51136, 59690, 63920, 69088, 81280, 86360, 95504, 101473, 102272, 119380, 127840, 138176, 172720, 191008, 202946, 238760, 255680, 276352, 345440, 382016, 405892, 477520, 507365, 511360, 690880, 764032, 811784, 955040, 1014730, 1381760, 1623568, 1910080, 2029460, 3247136, 3820160, 4058920, 6494272, 8117840, 12988544, 16235680, 32471360, 64942720]

約数ペア:

[(1, 64942720), (2, 32471360), (4, 16235680), (5, 12988544), (8, 8117840), (10, 6494272), (16, 4058920), (17, 3820160), (20, 3247136), (32, 2029460), (34, 1910080), (40, 1623568), (47, 1381760), (64, 1014730), (68, 955040), (80, 811784), (85, 764032), (94, 690880), (127, 511360), (128, 507365), (136, 477520), (160, 405892), (170, 382016), (188, 345440), (235, 276352), (254, 255680), (272, 238760), (320, 202946), (340, 191008), (376, 172720), (470, 138176), (508, 127840), (544, 119380), (635, 102272), (640, 101473), (680, 95504), (752, 86360), (799, 81280), (940, 69088), (1016, 63920), (1088, 59690), (1270, 51136), (1360, 47752), (1504, 43180), (1598, 40640), (1880, 34544), (2032, 31960), (2159, 30080), (2176, 29845), (2540, 25568), (2720, 23876), (3008, 21590), (3196, 20320), (3760, 17272), (3995, 16256), (4064, 15980), (4318, 15040), (5080, 12784), (5440, 11938), (5969, 10880), (6016, 10795), (6392, 10160), (7520, 8636), (7990, 8128)]