19483240

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{149}}^1\times {\mathrm{467}}^1$

素因数の和:634

約数の個数: 64

約数和(自身を含む): 50544000

約数和(自身を除く): 31060760

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 149, 280, 298, 467, 596, 745, 934, 1043, 1192, 1490, 1868, 2086, 2335, 2980, 3269, 3736, 4172, 4670, 5215, 5960, 6538, 8344, 9340, 10430, 13076, 16345, 18680, 20860, 26152, 32690, 41720, 65380, 69583, 130760, 139166, 278332, 347915, 487081, 556664, 695830, 974162, 1391660, 1948324, 2435405, 2783320, 3896648, 4870810, 9741620, 19483240]

約数ペア:

[(1, 19483240), (2, 9741620), (4, 4870810), (5, 3896648), (7, 2783320), (8, 2435405), (10, 1948324), (14, 1391660), (20, 974162), (28, 695830), (35, 556664), (40, 487081), (56, 347915), (70, 278332), (140, 139166), (149, 130760), (280, 69583), (298, 65380), (467, 41720), (596, 32690), (745, 26152), (934, 20860), (1043, 18680), (1192, 16345), (1490, 13076), (1868, 10430), (2086, 9340), (2335, 8344), (2980, 6538), (3269, 5960), (3736, 5215), (4172, 4670)]