398474640

素因数分解:

$2^4\times 3^4\times 5^1\times {\mathrm{61493}}^1$

素因数の和:61518

約数の個数: 100

約数和(自身を含む): 1383983964

約数和(自身を除く): 985509324

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 36, 40, 45, 48, 54, 60, 72, 80, 81, 90, 108, 120, 135, 144, 162, 180, 216, 240, 270, 324, 360, 405, 432, 540, 648, 720, 810, 1080, 1296, 1620, 2160, 3240, 6480, 61493, 122986, 184479, 245972, 307465, 368958, 491944, 553437, 614930, 737916, 922395, 983888, 1106874, 1229860, 1475832, 1660311, 1844790, 2213748, 2459720, 2767185, 2951664, 3320622, 3689580, 4427496, 4919440, 4980933, 5534370, 6641244, 7379160, 8301555, 8854992, 9961866, 11068740, 13282488, 14758320, 16603110, 19923732, 22137480, 24904665, 26564976, 33206220, 39847464, 44274960, 49809330, 66412440, 79694928, 99618660, 132824880, 199237320, 398474640]

約数ペア:

[(1, 398474640), (2, 199237320), (3, 132824880), (4, 99618660), (5, 79694928), (6, 66412440), (8, 49809330), (9, 44274960), (10, 39847464), (12, 33206220), (15, 26564976), (16, 24904665), (18, 22137480), (20, 19923732), (24, 16603110), (27, 14758320), (30, 13282488), (36, 11068740), (40, 9961866), (45, 8854992), (48, 8301555), (54, 7379160), (60, 6641244), (72, 5534370), (80, 4980933), (81, 4919440), (90, 4427496), (108, 3689580), (120, 3320622), (135, 2951664), (144, 2767185), (162, 2459720), (180, 2213748), (216, 1844790), (240, 1660311), (270, 1475832), (324, 1229860), (360, 1106874), (405, 983888), (432, 922395), (540, 737916), (648, 614930), (720, 553437), (810, 491944), (1080, 368958), (1296, 307465), (1620, 245972), (2160, 184479), (3240, 122986), (6480, 61493)]