28056015

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{199}}^1\times {\mathrm{241}}^1$

素因数の和:464

約数の個数: 48

約数和(自身を含む): 52852800

約数和(自身を除く): 24796785

約数列:

[1, 3, 5, 9, 13, 15, 39, 45, 65, 117, 195, 199, 241, 585, 597, 723, 995, 1205, 1791, 2169, 2587, 2985, 3133, 3615, 7761, 8955, 9399, 10845, 12935, 15665, 23283, 28197, 38805, 46995, 47959, 116415, 140985, 143877, 239795, 431631, 623467, 719385, 1870401, 2158155, 3117335, 5611203, 9352005, 28056015]

約数ペア:

[(1, 28056015), (3, 9352005), (5, 5611203), (9, 3117335), (13, 2158155), (15, 1870401), (39, 719385), (45, 623467), (65, 431631), (117, 239795), (195, 143877), (199, 140985), (241, 116415), (585, 47959), (597, 46995), (723, 38805), (995, 28197), (1205, 23283), (1791, 15665), (2169, 12935), (2587, 10845), (2985, 9399), (3133, 8955), (3615, 7761)]