1997528040

素因数分解:

$2^3\times 3^5\times 5^1\times {\mathrm{205507}}^1$

素因数の和:205533

約数の個数: 96

約数和(自身を含む): 6732442080

約数和(自身を除く): 4734914040

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 54, 60, 72, 81, 90, 108, 120, 135, 162, 180, 216, 243, 270, 324, 360, 405, 486, 540, 648, 810, 972, 1080, 1215, 1620, 1944, 2430, 3240, 4860, 9720, 205507, 411014, 616521, 822028, 1027535, 1233042, 1644056, 1849563, 2055070, 2466084, 3082605, 3699126, 4110140, 4932168, 5548689, 6165210, 7398252, 8220280, 9247815, 11097378, 12330420, 14796504, 16646067, 18495630, 22194756, 24660840, 27743445, 33292134, 36991260, 44389512, 49938201, 55486890, 66584268, 73982520, 83230335, 99876402, 110973780, 133168536, 166460670, 199752804, 221947560, 249691005, 332921340, 399505608, 499382010, 665842680, 998764020, 1997528040]

約数ペア:

[(1, 1997528040), (2, 998764020), (3, 665842680), (4, 499382010), (5, 399505608), (6, 332921340), (8, 249691005), (9, 221947560), (10, 199752804), (12, 166460670), (15, 133168536), (18, 110973780), (20, 99876402), (24, 83230335), (27, 73982520), (30, 66584268), (36, 55486890), (40, 49938201), (45, 44389512), (54, 36991260), (60, 33292134), (72, 27743445), (81, 24660840), (90, 22194756), (108, 18495630), (120, 16646067), (135, 14796504), (162, 12330420), (180, 11097378), (216, 9247815), (243, 8220280), (270, 7398252), (324, 6165210), (360, 5548689), (405, 4932168), (486, 4110140), (540, 3699126), (648, 3082605), (810, 2466084), (972, 2055070), (1080, 1849563), (1215, 1644056), (1620, 1233042), (1944, 1027535), (2430, 822028), (3240, 616521), (4860, 411014), (9720, 205507)]