645979005

素因数分解:

$3^2\times 5^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{907}}^1$

素因数の和:968

約数の個数: 144

約数和(自身を含む): 1453308480

約数和(自身を除く): 807329475

約数列:

[1, 3, 5, 7, 9, 15, 17, 19, 21, 35, 45, 49, 51, 57, 63, 85, 95, 105, 119, 133, 147, 153, 171, 245, 255, 285, 315, 323, 357, 399, 441, 595, 665, 735, 765, 833, 855, 907, 931, 969, 1071, 1197, 1615, 1785, 1995, 2205, 2261, 2499, 2721, 2793, 2907, 4165, 4535, 4655, 4845, 5355, 5985, 6349, 6783, 7497, 8163, 8379, 11305, 12495, 13605, 13965, 14535, 15419, 15827, 17233, 19047, 20349, 31745, 33915, 37485, 40815, 41895, 44443, 46257, 47481, 51699, 57141, 77095, 79135, 86165, 95235, 101745, 107933, 120631, 133329, 138771, 142443, 155097, 222215, 231285, 237405, 258495, 285705, 292961, 323799, 361893, 399987, 539665, 603155, 666645, 693855, 712215, 755531, 775485, 844417, 878883, 971397, 1085679, 1464805, 1618995, 1809465, 1999935, 2050727, 2266593, 2533251, 2636649, 3777655, 4222085, 4394415, 4856985, 5428395, 6152181, 6799779, 7599753, 10253635, 11332965, 12666255, 13183245, 14355089, 18456543, 30760905, 33998895, 37998765, 43065267, 71775445, 92282715, 129195801, 215326335, 645979005]

約数ペア:

[(1, 645979005), (3, 215326335), (5, 129195801), (7, 92282715), (9, 71775445), (15, 43065267), (17, 37998765), (19, 33998895), (21, 30760905), (35, 18456543), (45, 14355089), (49, 13183245), (51, 12666255), (57, 11332965), (63, 10253635), (85, 7599753), (95, 6799779), (105, 6152181), (119, 5428395), (133, 4856985), (147, 4394415), (153, 4222085), (171, 3777655), (245, 2636649), (255, 2533251), (285, 2266593), (315, 2050727), (323, 1999935), (357, 1809465), (399, 1618995), (441, 1464805), (595, 1085679), (665, 971397), (735, 878883), (765, 844417), (833, 775485), (855, 755531), (907, 712215), (931, 693855), (969, 666645), (1071, 603155), (1197, 539665), (1615, 399987), (1785, 361893), (1995, 323799), (2205, 292961), (2261, 285705), (2499, 258495), (2721, 237405), (2793, 231285), (2907, 222215), (4165, 155097), (4535, 142443), (4655, 138771), (4845, 133329), (5355, 120631), (5985, 107933), (6349, 101745), (6783, 95235), (7497, 86165), (8163, 79135), (8379, 77095), (11305, 57141), (12495, 51699), (13605, 47481), (13965, 46257), (14535, 44443), (15419, 41895), (15827, 40815), (17233, 37485), (19047, 33915), (20349, 31745)]