201389990

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{199}}^1\times {\mathrm{5953}}^1$

素因数の和:6176

約数の個数: 32

約数和(自身を含む): 385819200

約数和(自身を除く): 184429210

約数列:

[1, 2, 5, 10, 17, 34, 85, 170, 199, 398, 995, 1990, 3383, 5953, 6766, 11906, 16915, 29765, 33830, 59530, 101201, 202402, 506005, 1012010, 1184647, 2369294, 5923235, 11846470, 20138999, 40277998, 100694995, 201389990]

約数ペア:

[(1, 201389990), (2, 100694995), (5, 40277998), (10, 20138999), (17, 11846470), (34, 5923235), (85, 2369294), (170, 1184647), (199, 1012010), (398, 506005), (995, 202402), (1990, 101201), (3383, 59530), (5953, 33830), (6766, 29765), (11906, 16915)]