291365820

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{251}}^1\times {\mathrm{6449}}^1$

素因数の和:6715

約数の個数: 72

約数和(自身を含む): 887468400

約数和(自身を除く): 596102580

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 251, 502, 753, 1004, 1255, 1506, 2259, 2510, 3012, 3765, 4518, 5020, 6449, 7530, 9036, 11295, 12898, 15060, 19347, 22590, 25796, 32245, 38694, 45180, 58041, 64490, 77388, 96735, 116082, 128980, 193470, 232164, 290205, 386940, 580410, 1160820, 1618699, 3237398, 4856097, 6474796, 8093495, 9712194, 14568291, 16186990, 19424388, 24280485, 29136582, 32373980, 48560970, 58273164, 72841455, 97121940, 145682910, 291365820]

約数ペア:

[(1, 291365820), (2, 145682910), (3, 97121940), (4, 72841455), (5, 58273164), (6, 48560970), (9, 32373980), (10, 29136582), (12, 24280485), (15, 19424388), (18, 16186990), (20, 14568291), (30, 9712194), (36, 8093495), (45, 6474796), (60, 4856097), (90, 3237398), (180, 1618699), (251, 1160820), (502, 580410), (753, 386940), (1004, 290205), (1255, 232164), (1506, 193470), (2259, 128980), (2510, 116082), (3012, 96735), (3765, 77388), (4518, 64490), (5020, 58041), (6449, 45180), (7530, 38694), (9036, 32245), (11295, 25796), (12898, 22590), (15060, 19347)]