21140880

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{59}}^1\times {\mathrm{1493}}^1$

素因数の和:1568

約数の個数: 80

約数和(自身を含む): 66692160

約数和(自身を除く): 45551280

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 59, 60, 80, 118, 120, 177, 236, 240, 295, 354, 472, 590, 708, 885, 944, 1180, 1416, 1493, 1770, 2360, 2832, 2986, 3540, 4479, 4720, 5972, 7080, 7465, 8958, 11944, 14160, 14930, 17916, 22395, 23888, 29860, 35832, 44790, 59720, 71664, 88087, 89580, 119440, 176174, 179160, 264261, 352348, 358320, 440435, 528522, 704696, 880870, 1057044, 1321305, 1409392, 1761740, 2114088, 2642610, 3523480, 4228176, 5285220, 7046960, 10570440, 21140880]

約数ペア:

[(1, 21140880), (2, 10570440), (3, 7046960), (4, 5285220), (5, 4228176), (6, 3523480), (8, 2642610), (10, 2114088), (12, 1761740), (15, 1409392), (16, 1321305), (20, 1057044), (24, 880870), (30, 704696), (40, 528522), (48, 440435), (59, 358320), (60, 352348), (80, 264261), (118, 179160), (120, 176174), (177, 119440), (236, 89580), (240, 88087), (295, 71664), (354, 59720), (472, 44790), (590, 35832), (708, 29860), (885, 23888), (944, 22395), (1180, 17916), (1416, 14930), (1493, 14160), (1770, 11944), (2360, 8958), (2832, 7465), (2986, 7080), (3540, 5972), (4479, 4720)]