80875780

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{179}}^1$

素因数の和:277

約数の個数: 96

約数和(自身を含む): 190512000

約数和(自身を除く): 109636220

約数列:

[1, 2, 4, 5, 10, 19, 20, 29, 38, 41, 58, 76, 82, 95, 116, 145, 164, 179, 190, 205, 290, 358, 380, 410, 551, 580, 716, 779, 820, 895, 1102, 1189, 1558, 1790, 2204, 2378, 2755, 3116, 3401, 3580, 3895, 4756, 5191, 5510, 5945, 6802, 7339, 7790, 10382, 11020, 11890, 13604, 14678, 15580, 17005, 20764, 22591, 23780, 25955, 29356, 34010, 36695, 45182, 51910, 68020, 73390, 90364, 98629, 103820, 112955, 139441, 146780, 197258, 212831, 225910, 278882, 394516, 425662, 451820, 493145, 557764, 697205, 851324, 986290, 1064155, 1394410, 1972580, 2128310, 2788820, 4043789, 4256620, 8087578, 16175156, 20218945, 40437890, 80875780]

約数ペア:

[(1, 80875780), (2, 40437890), (4, 20218945), (5, 16175156), (10, 8087578), (19, 4256620), (20, 4043789), (29, 2788820), (38, 2128310), (41, 1972580), (58, 1394410), (76, 1064155), (82, 986290), (95, 851324), (116, 697205), (145, 557764), (164, 493145), (179, 451820), (190, 425662), (205, 394516), (290, 278882), (358, 225910), (380, 212831), (410, 197258), (551, 146780), (580, 139441), (716, 112955), (779, 103820), (820, 98629), (895, 90364), (1102, 73390), (1189, 68020), (1558, 51910), (1790, 45182), (2204, 36695), (2378, 34010), (2755, 29356), (3116, 25955), (3401, 23780), (3580, 22591), (3895, 20764), (4756, 17005), (5191, 15580), (5510, 14678), (5945, 13604), (6802, 11890), (7339, 11020), (7790, 10382)]