11921980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{67}}^1$

素因数の和:155

約数の個数: 96

約数和(自身を含む): 30707712

約数和(自身を除く): 18785732

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 31, 35, 41, 62, 67, 70, 82, 124, 134, 140, 155, 164, 205, 217, 268, 287, 310, 335, 410, 434, 469, 574, 620, 670, 820, 868, 938, 1085, 1148, 1271, 1340, 1435, 1876, 2077, 2170, 2345, 2542, 2747, 2870, 4154, 4340, 4690, 5084, 5494, 5740, 6355, 8308, 8897, 9380, 10385, 10988, 12710, 13735, 14539, 17794, 19229, 20770, 25420, 27470, 29078, 35588, 38458, 41540, 44485, 54940, 58156, 72695, 76916, 85157, 88970, 96145, 145390, 170314, 177940, 192290, 290780, 340628, 384580, 425785, 596099, 851570, 1192198, 1703140, 2384396, 2980495, 5960990, 11921980]

約数ペア:

[(1, 11921980), (2, 5960990), (4, 2980495), (5, 2384396), (7, 1703140), (10, 1192198), (14, 851570), (20, 596099), (28, 425785), (31, 384580), (35, 340628), (41, 290780), (62, 192290), (67, 177940), (70, 170314), (82, 145390), (124, 96145), (134, 88970), (140, 85157), (155, 76916), (164, 72695), (205, 58156), (217, 54940), (268, 44485), (287, 41540), (310, 38458), (335, 35588), (410, 29078), (434, 27470), (469, 25420), (574, 20770), (620, 19229), (670, 17794), (820, 14539), (868, 13735), (938, 12710), (1085, 10988), (1148, 10385), (1271, 9380), (1340, 8897), (1435, 8308), (1876, 6355), (2077, 5740), (2170, 5494), (2345, 5084), (2542, 4690), (2747, 4340), (2870, 4154)]