257303670

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{197}}^2$

素因数の和:434

約数の個数: 96

約数和(自身を含む): 707743008

約数和(自身を除く): 450439338

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 17, 26, 30, 34, 39, 51, 65, 78, 85, 102, 130, 170, 195, 197, 221, 255, 390, 394, 442, 510, 591, 663, 985, 1105, 1182, 1326, 1970, 2210, 2561, 2955, 3315, 3349, 5122, 5910, 6630, 6698, 7683, 10047, 12805, 15366, 16745, 20094, 25610, 33490, 38415, 38809, 43537, 50235, 76830, 77618, 87074, 100470, 116427, 130611, 194045, 217685, 232854, 261222, 388090, 435370, 504517, 582135, 653055, 659753, 1009034, 1164270, 1306110, 1319506, 1513551, 1979259, 2522585, 3027102, 3298765, 3958518, 5045170, 6597530, 7567755, 8576789, 9896295, 15135510, 17153578, 19792590, 25730367, 42883945, 51460734, 85767890, 128651835, 257303670]

約数ペア:

[(1, 257303670), (2, 128651835), (3, 85767890), (5, 51460734), (6, 42883945), (10, 25730367), (13, 19792590), (15, 17153578), (17, 15135510), (26, 9896295), (30, 8576789), (34, 7567755), (39, 6597530), (51, 5045170), (65, 3958518), (78, 3298765), (85, 3027102), (102, 2522585), (130, 1979259), (170, 1513551), (195, 1319506), (197, 1306110), (221, 1164270), (255, 1009034), (390, 659753), (394, 653055), (442, 582135), (510, 504517), (591, 435370), (663, 388090), (985, 261222), (1105, 232854), (1182, 217685), (1326, 194045), (1970, 130611), (2210, 116427), (2561, 100470), (2955, 87074), (3315, 77618), (3349, 76830), (5122, 50235), (5910, 43537), (6630, 38809), (6698, 38415), (7683, 33490), (10047, 25610), (12805, 20094), (15366, 16745)]