18572500

素因数分解:

$2^2\times 5^4\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1$

素因数の和:83

約数の個数: 120

約数和(自身を含む): 47234880

約数和(自身を除く): 28662380

約数列:

[1, 2, 4, 5, 10, 17, 19, 20, 23, 25, 34, 38, 46, 50, 68, 76, 85, 92, 95, 100, 115, 125, 170, 190, 230, 250, 323, 340, 380, 391, 425, 437, 460, 475, 500, 575, 625, 646, 782, 850, 874, 950, 1150, 1250, 1292, 1564, 1615, 1700, 1748, 1900, 1955, 2125, 2185, 2300, 2375, 2500, 2875, 3230, 3910, 4250, 4370, 4750, 5750, 6460, 7429, 7820, 8075, 8500, 8740, 9500, 9775, 10625, 10925, 11500, 11875, 14375, 14858, 16150, 19550, 21250, 21850, 23750, 28750, 29716, 32300, 37145, 39100, 40375, 42500, 43700, 47500, 48875, 54625, 57500, 74290, 80750, 97750, 109250, 148580, 161500, 185725, 195500, 201875, 218500, 244375, 273125, 371450, 403750, 488750, 546250, 742900, 807500, 928625, 977500, 1092500, 1857250, 3714500, 4643125, 9286250, 18572500]

約数ペア:

[(1, 18572500), (2, 9286250), (4, 4643125), (5, 3714500), (10, 1857250), (17, 1092500), (19, 977500), (20, 928625), (23, 807500), (25, 742900), (34, 546250), (38, 488750), (46, 403750), (50, 371450), (68, 273125), (76, 244375), (85, 218500), (92, 201875), (95, 195500), (100, 185725), (115, 161500), (125, 148580), (170, 109250), (190, 97750), (230, 80750), (250, 74290), (323, 57500), (340, 54625), (380, 48875), (391, 47500), (425, 43700), (437, 42500), (460, 40375), (475, 39100), (500, 37145), (575, 32300), (625, 29716), (646, 28750), (782, 23750), (850, 21850), (874, 21250), (950, 19550), (1150, 16150), (1250, 14858), (1292, 14375), (1564, 11875), (1615, 11500), (1700, 10925), (1748, 10625), (1900, 9775), (1955, 9500), (2125, 8740), (2185, 8500), (2300, 8075), (2375, 7820), (2500, 7429), (2875, 6460), (3230, 5750), (3910, 4750), (4250, 4370)]