20166500

素因数分解:

$2^2\times 5^3\times {\mathrm{53}}^1\times {\mathrm{761}}^1$

素因数の和:833

約数の個数: 48

約数和(自身を含む): 44933616

約数和(自身を除く): 24767116

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 53, 100, 106, 125, 212, 250, 265, 500, 530, 761, 1060, 1325, 1522, 2650, 3044, 3805, 5300, 6625, 7610, 13250, 15220, 19025, 26500, 38050, 40333, 76100, 80666, 95125, 161332, 190250, 201665, 380500, 403330, 806660, 1008325, 2016650, 4033300, 5041625, 10083250, 20166500]

約数ペア:

[(1, 20166500), (2, 10083250), (4, 5041625), (5, 4033300), (10, 2016650), (20, 1008325), (25, 806660), (50, 403330), (53, 380500), (100, 201665), (106, 190250), (125, 161332), (212, 95125), (250, 80666), (265, 76100), (500, 40333), (530, 38050), (761, 26500), (1060, 19025), (1325, 15220), (1522, 13250), (2650, 7610), (3044, 6625), (3805, 5300)]