212420040

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{252881}}^1$

素因数の和:252902

約数の個数: 64

約数和(自身を含む): 728300160

約数和(自身を除く): 515880120

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, 252881, 505762, 758643, 1011524, 1264405, 1517286, 1770167, 2023048, 2528810, 3034572, 3540334, 3793215, 5057620, 5310501, 6069144, 7080668, 7586430, 8850835, 10115240, 10621002, 14161336, 15172860, 17701670, 21242004, 26552505, 30345720, 35403340, 42484008, 53105010, 70806680, 106210020, 212420040]

約数ペア:

[(1, 212420040), (2, 106210020), (3, 70806680), (4, 53105010), (5, 42484008), (6, 35403340), (7, 30345720), (8, 26552505), (10, 21242004), (12, 17701670), (14, 15172860), (15, 14161336), (20, 10621002), (21, 10115240), (24, 8850835), (28, 7586430), (30, 7080668), (35, 6069144), (40, 5310501), (42, 5057620), (56, 3793215), (60, 3540334), (70, 3034572), (84, 2528810), (105, 2023048), (120, 1770167), (140, 1517286), (168, 1264405), (210, 1011524), (280, 758643), (420, 505762), (840, 252881)]