21282720

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{101}}^1\times {\mathrm{439}}^1$

素因数の和:558

約数の個数: 96

約数和(自身を含む): 67858560

約数和(自身を除く): 46575840

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 80, 96, 101, 120, 160, 202, 240, 303, 404, 439, 480, 505, 606, 808, 878, 1010, 1212, 1317, 1515, 1616, 1756, 2020, 2195, 2424, 2634, 3030, 3232, 3512, 4040, 4390, 4848, 5268, 6060, 6585, 7024, 8080, 8780, 9696, 10536, 12120, 13170, 14048, 16160, 17560, 21072, 24240, 26340, 35120, 42144, 44339, 48480, 52680, 70240, 88678, 105360, 133017, 177356, 210720, 221695, 266034, 354712, 443390, 532068, 665085, 709424, 886780, 1064136, 1330170, 1418848, 1773560, 2128272, 2660340, 3547120, 4256544, 5320680, 7094240, 10641360, 21282720]

約数ペア:

[(1, 21282720), (2, 10641360), (3, 7094240), (4, 5320680), (5, 4256544), (6, 3547120), (8, 2660340), (10, 2128272), (12, 1773560), (15, 1418848), (16, 1330170), (20, 1064136), (24, 886780), (30, 709424), (32, 665085), (40, 532068), (48, 443390), (60, 354712), (80, 266034), (96, 221695), (101, 210720), (120, 177356), (160, 133017), (202, 105360), (240, 88678), (303, 70240), (404, 52680), (439, 48480), (480, 44339), (505, 42144), (606, 35120), (808, 26340), (878, 24240), (1010, 21072), (1212, 17560), (1317, 16160), (1515, 14048), (1616, 13170), (1756, 12120), (2020, 10536), (2195, 9696), (2424, 8780), (2634, 8080), (3030, 7024), (3232, 6585), (3512, 6060), (4040, 5268), (4390, 4848)]