39947120

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{641}}^1$

素因数の和:714

約数の個数: 80

約数和(自身を含む): 100306080

約数和(自身を除く): 60358960

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 41, 76, 80, 82, 95, 152, 164, 190, 205, 304, 328, 380, 410, 641, 656, 760, 779, 820, 1282, 1520, 1558, 1640, 2564, 3116, 3205, 3280, 3895, 5128, 6232, 6410, 7790, 10256, 12179, 12464, 12820, 15580, 24358, 25640, 26281, 31160, 48716, 51280, 52562, 60895, 62320, 97432, 105124, 121790, 131405, 194864, 210248, 243580, 262810, 420496, 487160, 499339, 525620, 974320, 998678, 1051240, 1997356, 2102480, 2496695, 3994712, 4993390, 7989424, 9986780, 19973560, 39947120]

約数ペア:

[(1, 39947120), (2, 19973560), (4, 9986780), (5, 7989424), (8, 4993390), (10, 3994712), (16, 2496695), (19, 2102480), (20, 1997356), (38, 1051240), (40, 998678), (41, 974320), (76, 525620), (80, 499339), (82, 487160), (95, 420496), (152, 262810), (164, 243580), (190, 210248), (205, 194864), (304, 131405), (328, 121790), (380, 105124), (410, 97432), (641, 62320), (656, 60895), (760, 52562), (779, 51280), (820, 48716), (1282, 31160), (1520, 26281), (1558, 25640), (1640, 24358), (2564, 15580), (3116, 12820), (3205, 12464), (3280, 12179), (3895, 10256), (5128, 7790), (6232, 6410)]