19841240

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{16001}}^1$

素因数の和:16043

約数の個数: 32

約数和(自身を含む): 46085760

約数和(自身を除く): 26244520

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 16001, 32002, 64004, 80005, 128008, 160010, 320020, 496031, 640040, 992062, 1984124, 2480155, 3968248, 4960310, 9920620, 19841240]

約数ペア:

[(1, 19841240), (2, 9920620), (4, 4960310), (5, 3968248), (8, 2480155), (10, 1984124), (20, 992062), (31, 640040), (40, 496031), (62, 320020), (124, 160010), (155, 128008), (248, 80005), (310, 64004), (620, 32002), (1240, 16001)]