21385440

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{14851}}^1$

素因数の和:14872

約数の個数: 72

約数和(自身を含む): 72982728

約数和(自身を除く): 51597288

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 72, 80, 90, 96, 120, 144, 160, 180, 240, 288, 360, 480, 720, 1440, 14851, 29702, 44553, 59404, 74255, 89106, 118808, 133659, 148510, 178212, 222765, 237616, 267318, 297020, 356424, 445530, 475232, 534636, 594040, 668295, 712848, 891060, 1069272, 1188080, 1336590, 1425696, 1782120, 2138544, 2376160, 2673180, 3564240, 4277088, 5346360, 7128480, 10692720, 21385440]

約数ペア:

[(1, 21385440), (2, 10692720), (3, 7128480), (4, 5346360), (5, 4277088), (6, 3564240), (8, 2673180), (9, 2376160), (10, 2138544), (12, 1782120), (15, 1425696), (16, 1336590), (18, 1188080), (20, 1069272), (24, 891060), (30, 712848), (32, 668295), (36, 594040), (40, 534636), (45, 475232), (48, 445530), (60, 356424), (72, 297020), (80, 267318), (90, 237616), (96, 222765), (120, 178212), (144, 148510), (160, 133659), (180, 118808), (240, 89106), (288, 74255), (360, 59404), (480, 44553), (720, 29702), (1440, 14851)]