20726220

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{23}}^2\times {\mathrm{653}}^1$

素因数の和:711

約数の個数: 72

約数和(自身を含む): 60759216

約数和(自身を除く): 40032996

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 23, 30, 46, 60, 69, 92, 115, 138, 230, 276, 345, 460, 529, 653, 690, 1058, 1306, 1380, 1587, 1959, 2116, 2612, 2645, 3174, 3265, 3918, 5290, 6348, 6530, 7836, 7935, 9795, 10580, 13060, 15019, 15870, 19590, 30038, 31740, 39180, 45057, 60076, 75095, 90114, 150190, 180228, 225285, 300380, 345437, 450570, 690874, 901140, 1036311, 1381748, 1727185, 2072622, 3454370, 4145244, 5181555, 6908740, 10363110, 20726220]

約数ペア:

[(1, 20726220), (2, 10363110), (3, 6908740), (4, 5181555), (5, 4145244), (6, 3454370), (10, 2072622), (12, 1727185), (15, 1381748), (20, 1036311), (23, 901140), (30, 690874), (46, 450570), (60, 345437), (69, 300380), (92, 225285), (115, 180228), (138, 150190), (230, 90114), (276, 75095), (345, 60076), (460, 45057), (529, 39180), (653, 31740), (690, 30038), (1058, 19590), (1306, 15870), (1380, 15019), (1587, 13060), (1959, 10580), (2116, 9795), (2612, 7935), (2645, 7836), (3174, 6530), (3265, 6348), (3918, 5290)]