78128890

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{21059}}^1$

素因数の和:21126

約数の個数: 32

約数和(自身を含む): 163762560

約数和(自身を除く): 85633670

約数列:

[1, 2, 5, 7, 10, 14, 35, 53, 70, 106, 265, 371, 530, 742, 1855, 3710, 21059, 42118, 105295, 147413, 210590, 294826, 737065, 1116127, 1474130, 2232254, 5580635, 7812889, 11161270, 15625778, 39064445, 78128890]

約数ペア:

[(1, 78128890), (2, 39064445), (5, 15625778), (7, 11161270), (10, 7812889), (14, 5580635), (35, 2232254), (53, 1474130), (70, 1116127), (106, 737065), (265, 294826), (371, 210590), (530, 147413), (742, 105295), (1855, 42118), (3710, 21059)]