13378750

素因数分解:

$2^1\times 5^4\times 7^1\times {\mathrm{11}}^1\times {\mathrm{139}}^1$

素因数の和:179

約数の個数: 80

約数和(自身を含む): 31489920

約数和(自身を除く): 18111170

約数列:

[1, 2, 5, 7, 10, 11, 14, 22, 25, 35, 50, 55, 70, 77, 110, 125, 139, 154, 175, 250, 275, 278, 350, 385, 550, 625, 695, 770, 875, 973, 1250, 1375, 1390, 1529, 1750, 1925, 1946, 2750, 3058, 3475, 3850, 4375, 4865, 6875, 6950, 7645, 8750, 9625, 9730, 10703, 13750, 15290, 17375, 19250, 21406, 24325, 34750, 38225, 48125, 48650, 53515, 76450, 86875, 96250, 107030, 121625, 173750, 191125, 243250, 267575, 382250, 535150, 608125, 955625, 1216250, 1337875, 1911250, 2675750, 6689375, 13378750]

約数ペア:

[(1, 13378750), (2, 6689375), (5, 2675750), (7, 1911250), (10, 1337875), (11, 1216250), (14, 955625), (22, 608125), (25, 535150), (35, 382250), (50, 267575), (55, 243250), (70, 191125), (77, 173750), (110, 121625), (125, 107030), (139, 96250), (154, 86875), (175, 76450), (250, 53515), (275, 48650), (278, 48125), (350, 38225), (385, 34750), (550, 24325), (625, 21406), (695, 19250), (770, 17375), (875, 15290), (973, 13750), (1250, 10703), (1375, 9730), (1390, 9625), (1529, 8750), (1750, 7645), (1925, 6950), (1946, 6875), (2750, 4865), (3058, 4375), (3475, 3850)]