26838280

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{13693}}^1$

素因数の和:13718

約数の個数: 48

約数和(自身を含む): 70250220

約数和(自身を除く): 43411940

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 392, 490, 980, 1960, 13693, 27386, 54772, 68465, 95851, 109544, 136930, 191702, 273860, 383404, 479255, 547720, 670957, 766808, 958510, 1341914, 1917020, 2683828, 3354785, 3834040, 5367656, 6709570, 13419140, 26838280]

約数ペア:

[(1, 26838280), (2, 13419140), (4, 6709570), (5, 5367656), (7, 3834040), (8, 3354785), (10, 2683828), (14, 1917020), (20, 1341914), (28, 958510), (35, 766808), (40, 670957), (49, 547720), (56, 479255), (70, 383404), (98, 273860), (140, 191702), (196, 136930), (245, 109544), (280, 95851), (392, 68465), (490, 54772), (980, 27386), (1960, 13693)]