28759900

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{22123}}^1$

素因数の和:22150

約数の個数: 36

約数和(自身を含む): 67212712

約数和(自身を除く): 38452812

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 130, 260, 325, 650, 1300, 22123, 44246, 88492, 110615, 221230, 287599, 442460, 553075, 575198, 1106150, 1150396, 1437995, 2212300, 2875990, 5751980, 7189975, 14379950, 28759900]

約数ペア:

[(1, 28759900), (2, 14379950), (4, 7189975), (5, 5751980), (10, 2875990), (13, 2212300), (20, 1437995), (25, 1150396), (26, 1106150), (50, 575198), (52, 553075), (65, 442460), (100, 287599), (130, 221230), (260, 110615), (325, 88492), (650, 44246), (1300, 22123)]