179920640

素因数分解:

$2^8\times 5^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{131}}^1$

素因数の和:218

約数の個数: 144

約数和(自身を含む): 461371680

約数和(自身を除く): 281451040

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 32, 37, 40, 58, 64, 74, 80, 116, 128, 131, 145, 148, 160, 185, 232, 256, 262, 290, 296, 320, 370, 464, 524, 580, 592, 640, 655, 740, 928, 1048, 1073, 1160, 1184, 1280, 1310, 1480, 1856, 2096, 2146, 2320, 2368, 2620, 2960, 3712, 3799, 4192, 4292, 4640, 4736, 4847, 5240, 5365, 5920, 7424, 7598, 8384, 8584, 9280, 9472, 9694, 10480, 10730, 11840, 15196, 16768, 17168, 18560, 18995, 19388, 20960, 21460, 23680, 24235, 30392, 33536, 34336, 37120, 37990, 38776, 41920, 42920, 47360, 48470, 60784, 68672, 75980, 77552, 83840, 85840, 96940, 121568, 137344, 140563, 151960, 155104, 167680, 171680, 193880, 243136, 274688, 281126, 303920, 310208, 343360, 387760, 486272, 562252, 607840, 620416, 686720, 702815, 775520, 972544, 1124504, 1215680, 1240832, 1373440, 1405630, 1551040, 2249008, 2431360, 2811260, 3102080, 4498016, 4862720, 5622520, 6204160, 8996032, 11245040, 17992064, 22490080, 35984128, 44980160, 89960320, 179920640]

約数ペア:

[(1, 179920640), (2, 89960320), (4, 44980160), (5, 35984128), (8, 22490080), (10, 17992064), (16, 11245040), (20, 8996032), (29, 6204160), (32, 5622520), (37, 4862720), (40, 4498016), (58, 3102080), (64, 2811260), (74, 2431360), (80, 2249008), (116, 1551040), (128, 1405630), (131, 1373440), (145, 1240832), (148, 1215680), (160, 1124504), (185, 972544), (232, 775520), (256, 702815), (262, 686720), (290, 620416), (296, 607840), (320, 562252), (370, 486272), (464, 387760), (524, 343360), (580, 310208), (592, 303920), (640, 281126), (655, 274688), (740, 243136), (928, 193880), (1048, 171680), (1073, 167680), (1160, 155104), (1184, 151960), (1280, 140563), (1310, 137344), (1480, 121568), (1856, 96940), (2096, 85840), (2146, 83840), (2320, 77552), (2368, 75980), (2620, 68672), (2960, 60784), (3712, 48470), (3799, 47360), (4192, 42920), (4292, 41920), (4640, 38776), (4736, 37990), (4847, 37120), (5240, 34336), (5365, 33536), (5920, 30392), (7424, 24235), (7598, 23680), (8384, 21460), (8584, 20960), (9280, 19388), (9472, 18995), (9694, 18560), (10480, 17168), (10730, 16768), (11840, 15196)]