1390689080

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{2089}}^1$

素因数の和:2217

約数の個数: 128

約数和(自身を含む): 3656664000

約数和(自身を除く): 2265974920

約数列:

[1, 2, 4, 5, 8, 10, 11, 17, 20, 22, 34, 40, 44, 55, 68, 85, 88, 89, 110, 136, 170, 178, 187, 220, 340, 356, 374, 440, 445, 680, 712, 748, 890, 935, 979, 1496, 1513, 1780, 1870, 1958, 2089, 3026, 3560, 3740, 3916, 4178, 4895, 6052, 7480, 7565, 7832, 8356, 9790, 10445, 12104, 15130, 16643, 16712, 19580, 20890, 22979, 30260, 33286, 35513, 39160, 41780, 45958, 60520, 66572, 71026, 83215, 83560, 91916, 114895, 133144, 142052, 166430, 177565, 183832, 185921, 229790, 284104, 332860, 355130, 371842, 390643, 459580, 665720, 710260, 743684, 781286, 919160, 929605, 1420520, 1487368, 1562572, 1859210, 1953215, 2045131, 3125144, 3160657, 3718420, 3906430, 4090262, 6321314, 7436840, 7812860, 8180524, 10225655, 12642628, 15625720, 15803285, 16361048, 20451310, 25285256, 31606570, 34767227, 40902620, 63213140, 69534454, 81805240, 126426280, 139068908, 173836135, 278137816, 347672270, 695344540, 1390689080]

約数ペア:

[(1, 1390689080), (2, 695344540), (4, 347672270), (5, 278137816), (8, 173836135), (10, 139068908), (11, 126426280), (17, 81805240), (20, 69534454), (22, 63213140), (34, 40902620), (40, 34767227), (44, 31606570), (55, 25285256), (68, 20451310), (85, 16361048), (88, 15803285), (89, 15625720), (110, 12642628), (136, 10225655), (170, 8180524), (178, 7812860), (187, 7436840), (220, 6321314), (340, 4090262), (356, 3906430), (374, 3718420), (440, 3160657), (445, 3125144), (680, 2045131), (712, 1953215), (748, 1859210), (890, 1562572), (935, 1487368), (979, 1420520), (1496, 929605), (1513, 919160), (1780, 781286), (1870, 743684), (1958, 710260), (2089, 665720), (3026, 459580), (3560, 390643), (3740, 371842), (3916, 355130), (4178, 332860), (4895, 284104), (6052, 229790), (7480, 185921), (7565, 183832), (7832, 177565), (8356, 166430), (9790, 142052), (10445, 133144), (12104, 114895), (15130, 91916), (16643, 83560), (16712, 83215), (19580, 71026), (20890, 66572), (22979, 60520), (30260, 45958), (33286, 41780), (35513, 39160)]