2213820

素因数分解:

$2^2\times 3^2\times 5^1\times 7^2\times {\mathrm{251}}^1$

素因数の和:280

約数の個数: 108

約数和(自身を含む): 7842744

約数和(自身を除く): 5628924

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 49, 60, 63, 70, 84, 90, 98, 105, 126, 140, 147, 180, 196, 210, 245, 251, 252, 294, 315, 420, 441, 490, 502, 588, 630, 735, 753, 882, 980, 1004, 1255, 1260, 1470, 1506, 1757, 1764, 2205, 2259, 2510, 2940, 3012, 3514, 3765, 4410, 4518, 5020, 5271, 7028, 7530, 8785, 8820, 9036, 10542, 11295, 12299, 15060, 15813, 17570, 21084, 22590, 24598, 26355, 31626, 35140, 36897, 45180, 49196, 52710, 61495, 63252, 73794, 79065, 105420, 110691, 122990, 147588, 158130, 184485, 221382, 245980, 316260, 368970, 442764, 553455, 737940, 1106910, 2213820]

約数ペア:

[(1, 2213820), (2, 1106910), (3, 737940), (4, 553455), (5, 442764), (6, 368970), (7, 316260), (9, 245980), (10, 221382), (12, 184485), (14, 158130), (15, 147588), (18, 122990), (20, 110691), (21, 105420), (28, 79065), (30, 73794), (35, 63252), (36, 61495), (42, 52710), (45, 49196), (49, 45180), (60, 36897), (63, 35140), (70, 31626), (84, 26355), (90, 24598), (98, 22590), (105, 21084), (126, 17570), (140, 15813), (147, 15060), (180, 12299), (196, 11295), (210, 10542), (245, 9036), (251, 8820), (252, 8785), (294, 7530), (315, 7028), (420, 5271), (441, 5020), (490, 4518), (502, 4410), (588, 3765), (630, 3514), (735, 3012), (753, 2940), (882, 2510), (980, 2259), (1004, 2205), (1255, 1764), (1260, 1757), (1470, 1506)]