404978990

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{577}}^1\times {\mathrm{5399}}^1$

素因数の和:5996

約数の個数: 32

約数和(自身を含む): 786542400

約数和(自身を除く): 381563410

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 577, 1154, 2885, 5399, 5770, 7501, 10798, 15002, 26995, 37505, 53990, 70187, 75010, 140374, 350935, 701870, 3115223, 6230446, 15576115, 31152230, 40497899, 80995798, 202489495, 404978990]

約数ペア:

[(1, 404978990), (2, 202489495), (5, 80995798), (10, 40497899), (13, 31152230), (26, 15576115), (65, 6230446), (130, 3115223), (577, 701870), (1154, 350935), (2885, 140374), (5399, 75010), (5770, 70187), (7501, 53990), (10798, 37505), (15002, 26995)]