312984880

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{257}}^1\times {\mathrm{1171}}^1$

素因数の和:1454

約数の個数: 80

約数和(自身を含む): 787387104

約数和(自身を除く): 474402224

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 257, 260, 514, 520, 1028, 1040, 1171, 1285, 2056, 2342, 2570, 3341, 4112, 4684, 5140, 5855, 6682, 9368, 10280, 11710, 13364, 15223, 16705, 18736, 20560, 23420, 26728, 30446, 33410, 46840, 53456, 60892, 66820, 76115, 93680, 121784, 133640, 152230, 243568, 267280, 300947, 304460, 601894, 608920, 1203788, 1217840, 1504735, 2407576, 3009470, 3912311, 4815152, 6018940, 7824622, 12037880, 15649244, 19561555, 24075760, 31298488, 39123110, 62596976, 78246220, 156492440, 312984880]

約数ペア:

[(1, 312984880), (2, 156492440), (4, 78246220), (5, 62596976), (8, 39123110), (10, 31298488), (13, 24075760), (16, 19561555), (20, 15649244), (26, 12037880), (40, 7824622), (52, 6018940), (65, 4815152), (80, 3912311), (104, 3009470), (130, 2407576), (208, 1504735), (257, 1217840), (260, 1203788), (514, 608920), (520, 601894), (1028, 304460), (1040, 300947), (1171, 267280), (1285, 243568), (2056, 152230), (2342, 133640), (2570, 121784), (3341, 93680), (4112, 76115), (4684, 66820), (5140, 60892), (5855, 53456), (6682, 46840), (9368, 33410), (10280, 30446), (11710, 26728), (13364, 23420), (15223, 20560), (16705, 18736)]