71218840

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{1217}}^1$

素因数の和:1265

約数の個数: 128

約数和(自身を含む): 210470400

約数和(自身を除く): 139251560

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 19, 20, 22, 28, 35, 38, 40, 44, 55, 56, 70, 76, 77, 88, 95, 110, 133, 140, 152, 154, 190, 209, 220, 266, 280, 308, 380, 385, 418, 440, 532, 616, 665, 760, 770, 836, 1045, 1064, 1217, 1330, 1463, 1540, 1672, 2090, 2434, 2660, 2926, 3080, 4180, 4868, 5320, 5852, 6085, 7315, 8360, 8519, 9736, 11704, 12170, 13387, 14630, 17038, 23123, 24340, 26774, 29260, 34076, 42595, 46246, 48680, 53548, 58520, 66935, 68152, 85190, 92492, 93709, 107096, 115615, 133870, 161861, 170380, 184984, 187418, 231230, 254353, 267740, 323722, 340760, 374836, 462460, 468545, 508706, 535480, 647444, 749672, 809305, 924920, 937090, 1017412, 1271765, 1294888, 1618610, 1780471, 1874180, 2034824, 2543530, 3237220, 3560942, 3748360, 5087060, 6474440, 7121884, 8902355, 10174120, 14243768, 17804710, 35609420, 71218840]

約数ペア:

[(1, 71218840), (2, 35609420), (4, 17804710), (5, 14243768), (7, 10174120), (8, 8902355), (10, 7121884), (11, 6474440), (14, 5087060), (19, 3748360), (20, 3560942), (22, 3237220), (28, 2543530), (35, 2034824), (38, 1874180), (40, 1780471), (44, 1618610), (55, 1294888), (56, 1271765), (70, 1017412), (76, 937090), (77, 924920), (88, 809305), (95, 749672), (110, 647444), (133, 535480), (140, 508706), (152, 468545), (154, 462460), (190, 374836), (209, 340760), (220, 323722), (266, 267740), (280, 254353), (308, 231230), (380, 187418), (385, 184984), (418, 170380), (440, 161861), (532, 133870), (616, 115615), (665, 107096), (760, 93709), (770, 92492), (836, 85190), (1045, 68152), (1064, 66935), (1217, 58520), (1330, 53548), (1463, 48680), (1540, 46246), (1672, 42595), (2090, 34076), (2434, 29260), (2660, 26774), (2926, 24340), (3080, 23123), (4180, 17038), (4868, 14630), (5320, 13387), (5852, 12170), (6085, 11704), (7315, 9736), (8360, 8519)]