61521320

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{233}}^1$

素因数の和:315

約数の個数: 128

約数和(自身を含む): 169827840

約数和(自身を除く): 108306520

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 23, 28, 35, 40, 41, 46, 56, 70, 82, 92, 115, 140, 161, 164, 184, 205, 230, 233, 280, 287, 322, 328, 410, 460, 466, 574, 644, 805, 820, 920, 932, 943, 1148, 1165, 1288, 1435, 1610, 1631, 1640, 1864, 1886, 2296, 2330, 2870, 3220, 3262, 3772, 4660, 4715, 5359, 5740, 6440, 6524, 6601, 7544, 8155, 9320, 9430, 9553, 10718, 11480, 13048, 13202, 16310, 18860, 19106, 21436, 26404, 26795, 32620, 33005, 37513, 37720, 38212, 42872, 47765, 52808, 53590, 65240, 66010, 66871, 75026, 76424, 95530, 107180, 132020, 133742, 150052, 187565, 191060, 214360, 219719, 264040, 267484, 300104, 334355, 375130, 382120, 439438, 534968, 668710, 750260, 878876, 1098595, 1337420, 1500520, 1538033, 1757752, 2197190, 2674840, 3076066, 4394380, 6152132, 7690165, 8788760, 12304264, 15380330, 30760660, 61521320]

約数ペア:

[(1, 61521320), (2, 30760660), (4, 15380330), (5, 12304264), (7, 8788760), (8, 7690165), (10, 6152132), (14, 4394380), (20, 3076066), (23, 2674840), (28, 2197190), (35, 1757752), (40, 1538033), (41, 1500520), (46, 1337420), (56, 1098595), (70, 878876), (82, 750260), (92, 668710), (115, 534968), (140, 439438), (161, 382120), (164, 375130), (184, 334355), (205, 300104), (230, 267484), (233, 264040), (280, 219719), (287, 214360), (322, 191060), (328, 187565), (410, 150052), (460, 133742), (466, 132020), (574, 107180), (644, 95530), (805, 76424), (820, 75026), (920, 66871), (932, 66010), (943, 65240), (1148, 53590), (1165, 52808), (1288, 47765), (1435, 42872), (1610, 38212), (1631, 37720), (1640, 37513), (1864, 33005), (1886, 32620), (2296, 26795), (2330, 26404), (2870, 21436), (3220, 19106), (3262, 18860), (3772, 16310), (4660, 13202), (4715, 13048), (5359, 11480), (5740, 10718), (6440, 9553), (6524, 9430), (6601, 9320), (7544, 8155)]