320969375

素因数分解:

$5^4\times {\mathrm{19}}^1\times {\mathrm{151}}^1\times {\mathrm{179}}^1$

素因数の和:369

約数の個数: 40

約数和(自身を含む): 427363200

約数和(自身を除く): 106393825

約数列:

[1, 5, 19, 25, 95, 125, 151, 179, 475, 625, 755, 895, 2375, 2869, 3401, 3775, 4475, 11875, 14345, 17005, 18875, 22375, 27029, 71725, 85025, 94375, 111875, 135145, 358625, 425125, 513551, 675725, 1793125, 2125625, 2567755, 3378625, 12838775, 16893125, 64193875, 320969375]

約数ペア:

[(1, 320969375), (5, 64193875), (19, 16893125), (25, 12838775), (95, 3378625), (125, 2567755), (151, 2125625), (179, 1793125), (475, 675725), (625, 513551), (755, 425125), (895, 358625), (2375, 135145), (2869, 111875), (3401, 94375), (3775, 85025), (4475, 71725), (11875, 27029), (14345, 22375), (17005, 18875)]