78720180

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{1549}}^1$

素因数の和:1590

約数の個数: 144

約数和(自身を含む): 277065600

約数和(自身を除く): 198345420

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 11, 12, 14, 15, 20, 21, 22, 28, 30, 33, 35, 42, 44, 55, 60, 66, 70, 77, 84, 105, 110, 121, 132, 140, 154, 165, 210, 220, 231, 242, 308, 330, 363, 385, 420, 462, 484, 605, 660, 726, 770, 847, 924, 1155, 1210, 1452, 1540, 1549, 1694, 1815, 2310, 2420, 2541, 3098, 3388, 3630, 4235, 4620, 4647, 5082, 6196, 7260, 7745, 8470, 9294, 10164, 10843, 12705, 15490, 16940, 17039, 18588, 21686, 23235, 25410, 30980, 32529, 34078, 43372, 46470, 50820, 51117, 54215, 65058, 68156, 85195, 92940, 102234, 108430, 119273, 130116, 162645, 170390, 187429, 204468, 216860, 238546, 255585, 325290, 340780, 357819, 374858, 477092, 511170, 562287, 596365, 650580, 715638, 749716, 937145, 1022340, 1124574, 1192730, 1312003, 1431276, 1789095, 1874290, 2249148, 2385460, 2624006, 2811435, 3578190, 3748580, 3936009, 5248012, 5622870, 6560015, 7156380, 7872018, 11245740, 13120030, 15744036, 19680045, 26240060, 39360090, 78720180]

約数ペア:

[(1, 78720180), (2, 39360090), (3, 26240060), (4, 19680045), (5, 15744036), (6, 13120030), (7, 11245740), (10, 7872018), (11, 7156380), (12, 6560015), (14, 5622870), (15, 5248012), (20, 3936009), (21, 3748580), (22, 3578190), (28, 2811435), (30, 2624006), (33, 2385460), (35, 2249148), (42, 1874290), (44, 1789095), (55, 1431276), (60, 1312003), (66, 1192730), (70, 1124574), (77, 1022340), (84, 937145), (105, 749716), (110, 715638), (121, 650580), (132, 596365), (140, 562287), (154, 511170), (165, 477092), (210, 374858), (220, 357819), (231, 340780), (242, 325290), (308, 255585), (330, 238546), (363, 216860), (385, 204468), (420, 187429), (462, 170390), (484, 162645), (605, 130116), (660, 119273), (726, 108430), (770, 102234), (847, 92940), (924, 85195), (1155, 68156), (1210, 65058), (1452, 54215), (1540, 51117), (1549, 50820), (1694, 46470), (1815, 43372), (2310, 34078), (2420, 32529), (2541, 30980), (3098, 25410), (3388, 23235), (3630, 21686), (4235, 18588), (4620, 17039), (4647, 16940), (5082, 15490), (6196, 12705), (7260, 10843), (7745, 10164), (8470, 9294)]