257043640

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{17321}}^1$

素因数の和:17392

約数の個数: 64

約数和(自身を含む): 673479360

約数和(自身を除く): 416435720

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 53, 56, 70, 106, 140, 212, 265, 280, 371, 424, 530, 742, 1060, 1484, 1855, 2120, 2968, 3710, 7420, 14840, 17321, 34642, 69284, 86605, 121247, 138568, 173210, 242494, 346420, 484988, 606235, 692840, 918013, 969976, 1212470, 1836026, 2424940, 3672052, 4590065, 4849880, 6426091, 7344104, 9180130, 12852182, 18360260, 25704364, 32130455, 36720520, 51408728, 64260910, 128521820, 257043640]

約数ペア:

[(1, 257043640), (2, 128521820), (4, 64260910), (5, 51408728), (7, 36720520), (8, 32130455), (10, 25704364), (14, 18360260), (20, 12852182), (28, 9180130), (35, 7344104), (40, 6426091), (53, 4849880), (56, 4590065), (70, 3672052), (106, 2424940), (140, 1836026), (212, 1212470), (265, 969976), (280, 918013), (371, 692840), (424, 606235), (530, 484988), (742, 346420), (1060, 242494), (1484, 173210), (1855, 138568), (2120, 121247), (2968, 86605), (3710, 69284), (7420, 34642), (14840, 17321)]