18950820

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{45121}}^1$

素因数の和:45140

約数の個数: 48

約数和(自身を含む): 60643968

約数和(自身を除く): 41693148

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 45121, 90242, 135363, 180484, 225605, 270726, 315847, 451210, 541452, 631694, 676815, 902420, 947541, 1263388, 1353630, 1579235, 1895082, 2707260, 3158470, 3790164, 4737705, 6316940, 9475410, 18950820]

約数ペア:

[(1, 18950820), (2, 9475410), (3, 6316940), (4, 4737705), (5, 3790164), (6, 3158470), (7, 2707260), (10, 1895082), (12, 1579235), (14, 1353630), (15, 1263388), (20, 947541), (21, 902420), (28, 676815), (30, 631694), (35, 541452), (42, 451210), (60, 315847), (70, 270726), (84, 225605), (105, 180484), (140, 135363), (210, 90242), (420, 45121)]