20197347416

素因数分解:

$2^3\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{73}}^1\times {\mathrm{18289}}^1$

素因数の和:18460

約数の個数: 64

約数和(自身を含む): 40278969600

約数和(自身を除く): 20081622184

約数列:

[1, 2, 4, 8, 31, 61, 62, 73, 122, 124, 146, 244, 248, 292, 488, 584, 1891, 2263, 3782, 4453, 4526, 7564, 8906, 9052, 15128, 17812, 18104, 18289, 35624, 36578, 73156, 138043, 146312, 276086, 552172, 566959, 1104344, 1115629, 1133918, 1335097, 2231258, 2267836, 2670194, 4462516, 4535672, 5340388, 8925032, 10680776, 34584499, 41388007, 69168998, 81440917, 82776014, 138337996, 162881834, 165552028, 276675992, 325763668, 331104056, 651527336, 2524668427, 5049336854, 10098673708, 20197347416]

約数ペア:

[(1, 20197347416), (2, 10098673708), (4, 5049336854), (8, 2524668427), (31, 651527336), (61, 331104056), (62, 325763668), (73, 276675992), (122, 165552028), (124, 162881834), (146, 138337996), (244, 82776014), (248, 81440917), (292, 69168998), (488, 41388007), (584, 34584499), (1891, 10680776), (2263, 8925032), (3782, 5340388), (4453, 4535672), (4526, 4462516), (7564, 2670194), (8906, 2267836), (9052, 2231258), (15128, 1335097), (17812, 1133918), (18104, 1115629), (18289, 1104344), (35624, 566959), (36578, 552172), (73156, 276086), (138043, 146312)]