216875820

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{516371}}^1$

素因数の和:516390

約数の個数: 48

約数和(自身を含む): 694003968

約数和(自身を除く): 477128148

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, 516371, 1032742, 1549113, 2065484, 2581855, 3098226, 3614597, 5163710, 6196452, 7229194, 7745565, 10327420, 10843791, 14458388, 15491130, 18072985, 21687582, 30982260, 36145970, 43375164, 54218955, 72291940, 108437910, 216875820]

約数ペア:

[(1, 216875820), (2, 108437910), (3, 72291940), (4, 54218955), (5, 43375164), (6, 36145970), (7, 30982260), (10, 21687582), (12, 18072985), (14, 15491130), (15, 14458388), (20, 10843791), (21, 10327420), (28, 7745565), (30, 7229194), (35, 6196452), (42, 5163710), (60, 3614597), (70, 3098226), (84, 2581855), (105, 2065484), (140, 1549113), (210, 1032742), (420, 516371)]