242556990

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{621941}}^1$

素因数の和:621964

約数の個数: 32

約数和(自身を含む): 626917536

約数和(自身を除く): 384360546

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390, 621941, 1243882, 1865823, 3109705, 3731646, 6219410, 8085233, 9329115, 16170466, 18658230, 24255699, 40426165, 48511398, 80852330, 121278495, 242556990]

約数ペア:

[(1, 242556990), (2, 121278495), (3, 80852330), (5, 48511398), (6, 40426165), (10, 24255699), (13, 18658230), (15, 16170466), (26, 9329115), (30, 8085233), (39, 6219410), (65, 3731646), (78, 3109705), (130, 1865823), (195, 1243882), (390, 621941)]