28181580

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{3947}}^1$

素因数の和:3983

約数の個数: 96

約数和(自身を含む): 95510016

約数和(自身を除く): 67328436

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 17, 20, 21, 28, 30, 34, 35, 42, 51, 60, 68, 70, 84, 85, 102, 105, 119, 140, 170, 204, 210, 238, 255, 340, 357, 420, 476, 510, 595, 714, 1020, 1190, 1428, 1785, 2380, 3570, 3947, 7140, 7894, 11841, 15788, 19735, 23682, 27629, 39470, 47364, 55258, 59205, 67099, 78940, 82887, 110516, 118410, 134198, 138145, 165774, 201297, 236820, 268396, 276290, 331548, 335495, 402594, 414435, 469693, 552580, 670990, 805188, 828870, 939386, 1006485, 1341980, 1409079, 1657740, 1878772, 2012970, 2348465, 2818158, 4025940, 4696930, 5636316, 7045395, 9393860, 14090790, 28181580]

約数ペア:

[(1, 28181580), (2, 14090790), (3, 9393860), (4, 7045395), (5, 5636316), (6, 4696930), (7, 4025940), (10, 2818158), (12, 2348465), (14, 2012970), (15, 1878772), (17, 1657740), (20, 1409079), (21, 1341980), (28, 1006485), (30, 939386), (34, 828870), (35, 805188), (42, 670990), (51, 552580), (60, 469693), (68, 414435), (70, 402594), (84, 335495), (85, 331548), (102, 276290), (105, 268396), (119, 236820), (140, 201297), (170, 165774), (204, 138145), (210, 134198), (238, 118410), (255, 110516), (340, 82887), (357, 78940), (420, 67099), (476, 59205), (510, 55258), (595, 47364), (714, 39470), (1020, 27629), (1190, 23682), (1428, 19735), (1785, 15788), (2380, 11841), (3570, 7894), (3947, 7140)]