640320

素因数分解:

$2^6\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1$

素因数の和:72

約数の個数: 112

約数和(自身を含む): 2194560

約数和(自身を除く): 1554240

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 23, 24, 29, 30, 32, 40, 46, 48, 58, 60, 64, 69, 80, 87, 92, 96, 115, 116, 120, 138, 145, 160, 174, 184, 192, 230, 232, 240, 276, 290, 320, 345, 348, 368, 435, 460, 464, 480, 552, 580, 667, 690, 696, 736, 870, 920, 928, 960, 1104, 1160, 1334, 1380, 1392, 1472, 1740, 1840, 1856, 2001, 2208, 2320, 2668, 2760, 2784, 3335, 3480, 3680, 4002, 4416, 4640, 5336, 5520, 5568, 6670, 6960, 7360, 8004, 9280, 10005, 10672, 11040, 13340, 13920, 16008, 20010, 21344, 22080, 26680, 27840, 32016, 40020, 42688, 53360, 64032, 80040, 106720, 128064, 160080, 213440, 320160, 640320]

約数ペア:

[(1, 640320), (2, 320160), (3, 213440), (4, 160080), (5, 128064), (6, 106720), (8, 80040), (10, 64032), (12, 53360), (15, 42688), (16, 40020), (20, 32016), (23, 27840), (24, 26680), (29, 22080), (30, 21344), (32, 20010), (40, 16008), (46, 13920), (48, 13340), (58, 11040), (60, 10672), (64, 10005), (69, 9280), (80, 8004), (87, 7360), (92, 6960), (96, 6670), (115, 5568), (116, 5520), (120, 5336), (138, 4640), (145, 4416), (160, 4002), (174, 3680), (184, 3480), (192, 3335), (230, 2784), (232, 2760), (240, 2668), (276, 2320), (290, 2208), (320, 2001), (345, 1856), (348, 1840), (368, 1740), (435, 1472), (460, 1392), (464, 1380), (480, 1334), (552, 1160), (580, 1104), (667, 960), (690, 928), (696, 920), (736, 870)]