21654960

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{3923}}^1$

素因数の和:3962

約数の個数: 80

約数和(自身を含む): 70066944

約数和(自身を除く): 48411984

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 23, 24, 30, 40, 46, 48, 60, 69, 80, 92, 115, 120, 138, 184, 230, 240, 276, 345, 368, 460, 552, 690, 920, 1104, 1380, 1840, 2760, 3923, 5520, 7846, 11769, 15692, 19615, 23538, 31384, 39230, 47076, 58845, 62768, 78460, 90229, 94152, 117690, 156920, 180458, 188304, 235380, 270687, 313840, 360916, 451145, 470760, 541374, 721832, 902290, 941520, 1082748, 1353435, 1443664, 1804580, 2165496, 2706870, 3609160, 4330992, 5413740, 7218320, 10827480, 21654960]

約数ペア:

[(1, 21654960), (2, 10827480), (3, 7218320), (4, 5413740), (5, 4330992), (6, 3609160), (8, 2706870), (10, 2165496), (12, 1804580), (15, 1443664), (16, 1353435), (20, 1082748), (23, 941520), (24, 902290), (30, 721832), (40, 541374), (46, 470760), (48, 451145), (60, 360916), (69, 313840), (80, 270687), (92, 235380), (115, 188304), (120, 180458), (138, 156920), (184, 117690), (230, 94152), (240, 90229), (276, 78460), (345, 62768), (368, 58845), (460, 47076), (552, 39230), (690, 31384), (920, 23538), (1104, 19615), (1380, 15692), (1840, 11769), (2760, 7846), (3923, 5520)]