21557280

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{97}}^1\times {\mathrm{463}}^1$

素因数の和:578

約数の個数: 96

約数和(自身を含む): 68753664

約数和(自身を除く): 47196384

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 80, 96, 97, 120, 160, 194, 240, 291, 388, 463, 480, 485, 582, 776, 926, 970, 1164, 1389, 1455, 1552, 1852, 1940, 2315, 2328, 2778, 2910, 3104, 3704, 3880, 4630, 4656, 5556, 5820, 6945, 7408, 7760, 9260, 9312, 11112, 11640, 13890, 14816, 15520, 18520, 22224, 23280, 27780, 37040, 44448, 44911, 46560, 55560, 74080, 89822, 111120, 134733, 179644, 222240, 224555, 269466, 359288, 449110, 538932, 673665, 718576, 898220, 1077864, 1347330, 1437152, 1796440, 2155728, 2694660, 3592880, 4311456, 5389320, 7185760, 10778640, 21557280]

約数ペア:

[(1, 21557280), (2, 10778640), (3, 7185760), (4, 5389320), (5, 4311456), (6, 3592880), (8, 2694660), (10, 2155728), (12, 1796440), (15, 1437152), (16, 1347330), (20, 1077864), (24, 898220), (30, 718576), (32, 673665), (40, 538932), (48, 449110), (60, 359288), (80, 269466), (96, 224555), (97, 222240), (120, 179644), (160, 134733), (194, 111120), (240, 89822), (291, 74080), (388, 55560), (463, 46560), (480, 44911), (485, 44448), (582, 37040), (776, 27780), (926, 23280), (970, 22224), (1164, 18520), (1389, 15520), (1455, 14816), (1552, 13890), (1852, 11640), (1940, 11112), (2315, 9312), (2328, 9260), (2778, 7760), (2910, 7408), (3104, 6945), (3704, 5820), (3880, 5556), (4630, 4656)]