18869375

素因数分解:

$5^4\times 7^1\times {\mathrm{19}}^1\times {\mathrm{227}}^1$

素因数の和:273

約数の個数: 40

約数和(自身を含む): 28490880

約数和(自身を除く): 9621505

約数列:

[1, 5, 7, 19, 25, 35, 95, 125, 133, 175, 227, 475, 625, 665, 875, 1135, 1589, 2375, 3325, 4313, 4375, 5675, 7945, 11875, 16625, 21565, 28375, 30191, 39725, 83125, 107825, 141875, 150955, 198625, 539125, 754775, 993125, 2695625, 3773875, 18869375]

約数ペア:

[(1, 18869375), (5, 3773875), (7, 2695625), (19, 993125), (25, 754775), (35, 539125), (95, 198625), (125, 150955), (133, 141875), (175, 107825), (227, 83125), (475, 39725), (625, 30191), (665, 28375), (875, 21565), (1135, 16625), (1589, 11875), (2375, 7945), (3325, 5675), (4313, 4375)]