259684520

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{97}}^1\times {\mathrm{127}}^1$

素因数の和:283

約数の個数: 128

約数和(自身を含む): 650280960

約数和(自身を除く): 390596440

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 31, 34, 40, 62, 68, 85, 97, 124, 127, 136, 155, 170, 194, 248, 254, 310, 340, 388, 485, 508, 527, 620, 635, 680, 776, 970, 1016, 1054, 1240, 1270, 1649, 1940, 2108, 2159, 2540, 2635, 3007, 3298, 3880, 3937, 4216, 4318, 5080, 5270, 6014, 6596, 7874, 8245, 8636, 10540, 10795, 12028, 12319, 13192, 15035, 15748, 16490, 17272, 19685, 21080, 21590, 24056, 24638, 30070, 31496, 32980, 39370, 43180, 49276, 51119, 60140, 61595, 65960, 66929, 78740, 86360, 98552, 102238, 120280, 123190, 133858, 157480, 204476, 209423, 246380, 255595, 267716, 334645, 381889, 408952, 418846, 492760, 511190, 535432, 669290, 763778, 837692, 1022380, 1047115, 1338580, 1527556, 1675384, 1909445, 2044760, 2094230, 2677160, 3055112, 3818890, 4188460, 6492113, 7637780, 8376920, 12984226, 15275560, 25968452, 32460565, 51936904, 64921130, 129842260, 259684520]

約数ペア:

[(1, 259684520), (2, 129842260), (4, 64921130), (5, 51936904), (8, 32460565), (10, 25968452), (17, 15275560), (20, 12984226), (31, 8376920), (34, 7637780), (40, 6492113), (62, 4188460), (68, 3818890), (85, 3055112), (97, 2677160), (124, 2094230), (127, 2044760), (136, 1909445), (155, 1675384), (170, 1527556), (194, 1338580), (248, 1047115), (254, 1022380), (310, 837692), (340, 763778), (388, 669290), (485, 535432), (508, 511190), (527, 492760), (620, 418846), (635, 408952), (680, 381889), (776, 334645), (970, 267716), (1016, 255595), (1054, 246380), (1240, 209423), (1270, 204476), (1649, 157480), (1940, 133858), (2108, 123190), (2159, 120280), (2540, 102238), (2635, 98552), (3007, 86360), (3298, 78740), (3880, 66929), (3937, 65960), (4216, 61595), (4318, 60140), (5080, 51119), (5270, 49276), (6014, 43180), (6596, 39370), (7874, 32980), (8245, 31496), (8636, 30070), (10540, 24638), (10795, 24056), (12028, 21590), (12319, 21080), (13192, 19685), (15035, 17272), (15748, 16490)]