1640452095

素因数分解:

$3^4\times 5^1\times {\mathrm{4050499}}^1$

素因数の和:4050516

約数の個数: 20

約数和(自身を含む): 2940663000

約数和(自身を除く): 1300210905

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 4050499, 12151497, 20252495, 36454491, 60757485, 109363473, 182272455, 328090419, 546817365, 1640452095]

約数ペア:

[(1, 1640452095), (3, 546817365), (5, 328090419), (9, 182272455), (15, 109363473), (27, 60757485), (45, 36454491), (81, 20252495), (135, 12151497), (405, 4050499)]