991330970

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{157}}^1\times {\mathrm{90203}}^1$

素因数の和:90374

約数の個数: 32

約数和(自身を含む): 2052321408

約数和(自身を除く): 1060990438

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 157, 314, 785, 1099, 1570, 2198, 5495, 10990, 90203, 180406, 451015, 631421, 902030, 1262842, 3157105, 6314210, 14161871, 28323742, 70809355, 99133097, 141618710, 198266194, 495665485, 991330970]

約数ペア:

[(1, 991330970), (2, 495665485), (5, 198266194), (7, 141618710), (10, 99133097), (14, 70809355), (35, 28323742), (70, 14161871), (157, 6314210), (314, 3157105), (785, 1262842), (1099, 902030), (1570, 631421), (2198, 451015), (5495, 180406), (10990, 90203)]