20007500

素因数分解:

$2^2\times 5^4\times {\mathrm{53}}^1\times {\mathrm{151}}^1$

素因数の和:228

約数の個数: 60

約数和(自身を含む): 44873136

約数和(自身を除く): 24865636

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 53, 100, 106, 125, 151, 212, 250, 265, 302, 500, 530, 604, 625, 755, 1060, 1250, 1325, 1510, 2500, 2650, 3020, 3775, 5300, 6625, 7550, 8003, 13250, 15100, 16006, 18875, 26500, 32012, 33125, 37750, 40015, 66250, 75500, 80030, 94375, 132500, 160060, 188750, 200075, 377500, 400150, 800300, 1000375, 2000750, 4001500, 5001875, 10003750, 20007500]

約数ペア:

[(1, 20007500), (2, 10003750), (4, 5001875), (5, 4001500), (10, 2000750), (20, 1000375), (25, 800300), (50, 400150), (53, 377500), (100, 200075), (106, 188750), (125, 160060), (151, 132500), (212, 94375), (250, 80030), (265, 75500), (302, 66250), (500, 40015), (530, 37750), (604, 33125), (625, 32012), (755, 26500), (1060, 18875), (1250, 16006), (1325, 15100), (1510, 13250), (2500, 8003), (2650, 7550), (3020, 6625), (3775, 5300)]