257295920

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{8669}}^1$

素因数の和:8742

約数の個数: 80

約数和(自身を含む): 696651840

約数和(自身を除く): 439355920

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 53, 56, 70, 80, 106, 112, 140, 212, 265, 280, 371, 424, 530, 560, 742, 848, 1060, 1484, 1855, 2120, 2968, 3710, 4240, 5936, 7420, 8669, 14840, 17338, 29680, 34676, 43345, 60683, 69352, 86690, 121366, 138704, 173380, 242732, 303415, 346760, 459457, 485464, 606830, 693520, 918914, 970928, 1213660, 1837828, 2297285, 2427320, 3216199, 3675656, 4594570, 4854640, 6432398, 7351312, 9189140, 12864796, 16080995, 18378280, 25729592, 32161990, 36756560, 51459184, 64323980, 128647960, 257295920]

約数ペア:

[(1, 257295920), (2, 128647960), (4, 64323980), (5, 51459184), (7, 36756560), (8, 32161990), (10, 25729592), (14, 18378280), (16, 16080995), (20, 12864796), (28, 9189140), (35, 7351312), (40, 6432398), (53, 4854640), (56, 4594570), (70, 3675656), (80, 3216199), (106, 2427320), (112, 2297285), (140, 1837828), (212, 1213660), (265, 970928), (280, 918914), (371, 693520), (424, 606830), (530, 485464), (560, 459457), (742, 346760), (848, 303415), (1060, 242732), (1484, 173380), (1855, 138704), (2120, 121366), (2968, 86690), (3710, 69352), (4240, 60683), (5936, 43345), (7420, 34676), (8669, 29680), (14840, 17338)]