80372500

素因数分解:

$2^2\times 5^4\times {\mathrm{13}}^1\times {\mathrm{2473}}^1$

素因数の和:2510

約数の個数: 60

約数和(自身を含む): 189355012

約数和(自身を除く): 108982512

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 125, 130, 250, 260, 325, 500, 625, 650, 1250, 1300, 1625, 2473, 2500, 3250, 4946, 6500, 8125, 9892, 12365, 16250, 24730, 32149, 32500, 49460, 61825, 64298, 123650, 128596, 160745, 247300, 309125, 321490, 618250, 642980, 803725, 1236500, 1545625, 1607450, 3091250, 3214900, 4018625, 6182500, 8037250, 16074500, 20093125, 40186250, 80372500]

約数ペア:

[(1, 80372500), (2, 40186250), (4, 20093125), (5, 16074500), (10, 8037250), (13, 6182500), (20, 4018625), (25, 3214900), (26, 3091250), (50, 1607450), (52, 1545625), (65, 1236500), (100, 803725), (125, 642980), (130, 618250), (250, 321490), (260, 309125), (325, 247300), (500, 160745), (625, 128596), (650, 123650), (1250, 64298), (1300, 61825), (1625, 49460), (2473, 32500), (2500, 32149), (3250, 24730), (4946, 16250), (6500, 12365), (8125, 9892)]