256717680

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{62921}}^1$

素因数の和:62954

約数の個数: 80

約数和(自身を含む): 842651424

約数和(自身を除く): 585933744

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 17, 20, 24, 30, 34, 40, 48, 51, 60, 68, 80, 85, 102, 120, 136, 170, 204, 240, 255, 272, 340, 408, 510, 680, 816, 1020, 1360, 2040, 4080, 62921, 125842, 188763, 251684, 314605, 377526, 503368, 629210, 755052, 943815, 1006736, 1069657, 1258420, 1510104, 1887630, 2139314, 2516840, 3020208, 3208971, 3775260, 4278628, 5033680, 5348285, 6417942, 7550520, 8557256, 10696570, 12835884, 15101040, 16044855, 17114512, 21393140, 25671768, 32089710, 42786280, 51343536, 64179420, 85572560, 128358840, 256717680]

約数ペア:

[(1, 256717680), (2, 128358840), (3, 85572560), (4, 64179420), (5, 51343536), (6, 42786280), (8, 32089710), (10, 25671768), (12, 21393140), (15, 17114512), (16, 16044855), (17, 15101040), (20, 12835884), (24, 10696570), (30, 8557256), (34, 7550520), (40, 6417942), (48, 5348285), (51, 5033680), (60, 4278628), (68, 3775260), (80, 3208971), (85, 3020208), (102, 2516840), (120, 2139314), (136, 1887630), (170, 1510104), (204, 1258420), (240, 1069657), (255, 1006736), (272, 943815), (340, 755052), (408, 629210), (510, 503368), (680, 377526), (816, 314605), (1020, 251684), (1360, 188763), (2040, 125842), (4080, 62921)]