19739480

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^2\times {\mathrm{1367}}^1$

素因数の和:1416

約数の個数: 48

約数和(自身を含む): 46908720

約数和(自身を除く): 27169240

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 361, 380, 722, 760, 1367, 1444, 1805, 2734, 2888, 3610, 5468, 6835, 7220, 10936, 13670, 14440, 25973, 27340, 51946, 54680, 103892, 129865, 207784, 259730, 493487, 519460, 986974, 1038920, 1973948, 2467435, 3947896, 4934870, 9869740, 19739480]

約数ペア:

[(1, 19739480), (2, 9869740), (4, 4934870), (5, 3947896), (8, 2467435), (10, 1973948), (19, 1038920), (20, 986974), (38, 519460), (40, 493487), (76, 259730), (95, 207784), (152, 129865), (190, 103892), (361, 54680), (380, 51946), (722, 27340), (760, 25973), (1367, 14440), (1444, 13670), (1805, 10936), (2734, 7220), (2888, 6835), (3610, 5468)]