19837500

素因数分解:

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

素因数の和:78

約数の個数: 108

約数和(自身を含む): 60480504

約数和(自身を除く): 40643004

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 23, 25, 30, 46, 50, 60, 69, 75, 92, 100, 115, 125, 138, 150, 230, 250, 276, 300, 345, 375, 460, 500, 529, 575, 625, 690, 750, 1058, 1150, 1250, 1380, 1500, 1587, 1725, 1875, 2116, 2300, 2500, 2645, 2875, 3125, 3174, 3450, 3750, 5290, 5750, 6250, 6348, 6900, 7500, 7935, 8625, 9375, 10580, 11500, 12500, 13225, 14375, 15870, 17250, 18750, 26450, 28750, 31740, 34500, 37500, 39675, 43125, 52900, 57500, 66125, 71875, 79350, 86250, 132250, 143750, 158700, 172500, 198375, 215625, 264500, 287500, 330625, 396750, 431250, 661250, 793500, 862500, 991875, 1322500, 1653125, 1983750, 3306250, 3967500, 4959375, 6612500, 9918750, 19837500]

約数ペア:

[(1, 19837500), (2, 9918750), (3, 6612500), (4, 4959375), (5, 3967500), (6, 3306250), (10, 1983750), (12, 1653125), (15, 1322500), (20, 991875), (23, 862500), (25, 793500), (30, 661250), (46, 431250), (50, 396750), (60, 330625), (69, 287500), (75, 264500), (92, 215625), (100, 198375), (115, 172500), (125, 158700), (138, 143750), (150, 132250), (230, 86250), (250, 79350), (276, 71875), (300, 66125), (345, 57500), (375, 52900), (460, 43125), (500, 39675), (529, 37500), (575, 34500), (625, 31740), (690, 28750), (750, 26450), (1058, 18750), (1150, 17250), (1250, 15870), (1380, 14375), (1500, 13225), (1587, 12500), (1725, 11500), (1875, 10580), (2116, 9375), (2300, 8625), (2500, 7935), (2645, 7500), (2875, 6900), (3125, 6348), (3174, 6250), (3450, 5750), (3750, 5290)]