123690880

素因数分解:

$2^7\times 5^1\times {\mathrm{157}}^1\times {\mathrm{1231}}^1$

素因数の和:1407

約数の個数: 64

約数和(自身を含む): 297823680

約数和(自身を除く): 174132800

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 157, 160, 314, 320, 628, 640, 785, 1231, 1256, 1570, 2462, 2512, 3140, 4924, 5024, 6155, 6280, 9848, 10048, 12310, 12560, 19696, 20096, 24620, 25120, 39392, 49240, 50240, 78784, 98480, 100480, 157568, 193267, 196960, 386534, 393920, 773068, 787840, 966335, 1546136, 1932670, 3092272, 3865340, 6184544, 7730680, 12369088, 15461360, 24738176, 30922720, 61845440, 123690880]

約数ペア:

[(1, 123690880), (2, 61845440), (4, 30922720), (5, 24738176), (8, 15461360), (10, 12369088), (16, 7730680), (20, 6184544), (32, 3865340), (40, 3092272), (64, 1932670), (80, 1546136), (128, 966335), (157, 787840), (160, 773068), (314, 393920), (320, 386534), (628, 196960), (640, 193267), (785, 157568), (1231, 100480), (1256, 98480), (1570, 78784), (2462, 50240), (2512, 49240), (3140, 39392), (4924, 25120), (5024, 24620), (6155, 20096), (6280, 19696), (9848, 12560), (10048, 12310)]