257225640

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{18013}}^1$

素因数の和:18051

約数の個数: 128

約数和(自身を含む): 933845760

約数和(自身を除く): 676620120

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 17, 20, 21, 24, 28, 30, 34, 35, 40, 42, 51, 56, 60, 68, 70, 84, 85, 102, 105, 119, 120, 136, 140, 168, 170, 204, 210, 238, 255, 280, 340, 357, 408, 420, 476, 510, 595, 680, 714, 840, 952, 1020, 1190, 1428, 1785, 2040, 2380, 2856, 3570, 4760, 7140, 14280, 18013, 36026, 54039, 72052, 90065, 108078, 126091, 144104, 180130, 216156, 252182, 270195, 306221, 360260, 378273, 432312, 504364, 540390, 612442, 630455, 720520, 756546, 918663, 1008728, 1080780, 1224884, 1260910, 1513092, 1531105, 1837326, 1891365, 2143547, 2161560, 2449768, 2521820, 3026184, 3062210, 3674652, 3782730, 4287094, 4593315, 5043640, 6124420, 6430641, 7349304, 7565460, 8574188, 9186630, 10717735, 12248840, 12861282, 15130920, 17148376, 18373260, 21435470, 25722564, 32153205, 36746520, 42870940, 51445128, 64306410, 85741880, 128612820, 257225640]

約数ペア:

[(1, 257225640), (2, 128612820), (3, 85741880), (4, 64306410), (5, 51445128), (6, 42870940), (7, 36746520), (8, 32153205), (10, 25722564), (12, 21435470), (14, 18373260), (15, 17148376), (17, 15130920), (20, 12861282), (21, 12248840), (24, 10717735), (28, 9186630), (30, 8574188), (34, 7565460), (35, 7349304), (40, 6430641), (42, 6124420), (51, 5043640), (56, 4593315), (60, 4287094), (68, 3782730), (70, 3674652), (84, 3062210), (85, 3026184), (102, 2521820), (105, 2449768), (119, 2161560), (120, 2143547), (136, 1891365), (140, 1837326), (168, 1531105), (170, 1513092), (204, 1260910), (210, 1224884), (238, 1080780), (255, 1008728), (280, 918663), (340, 756546), (357, 720520), (408, 630455), (420, 612442), (476, 540390), (510, 504364), (595, 432312), (680, 378273), (714, 360260), (840, 306221), (952, 270195), (1020, 252182), (1190, 216156), (1428, 180130), (1785, 144104), (2040, 126091), (2380, 108078), (2856, 90065), (3570, 72052), (4760, 54039), (7140, 36026), (14280, 18013)]