19881960

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{23669}}^1$

素因数の和:23690

約数の個数: 64

約数和(自身を含む): 68169600

約数和(自身を除く): 48287640

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840, 23669, 47338, 71007, 94676, 118345, 142014, 165683, 189352, 236690, 284028, 331366, 355035, 473380, 497049, 568056, 662732, 710070, 828415, 946760, 994098, 1325464, 1420140, 1656830, 1988196, 2485245, 2840280, 3313660, 3976392, 4970490, 6627320, 9940980, 19881960]

約数ペア:

[(1, 19881960), (2, 9940980), (3, 6627320), (4, 4970490), (5, 3976392), (6, 3313660), (7, 2840280), (8, 2485245), (10, 1988196), (12, 1656830), (14, 1420140), (15, 1325464), (20, 994098), (21, 946760), (24, 828415), (28, 710070), (30, 662732), (35, 568056), (40, 497049), (42, 473380), (56, 355035), (60, 331366), (70, 284028), (84, 236690), (105, 189352), (120, 165683), (140, 142014), (168, 118345), (210, 94676), (280, 71007), (420, 47338), (840, 23669)]