19778050

素因数分解:

$2^1\times 5^2\times {\mathrm{19}}^1\times {\mathrm{109}}^1\times {\mathrm{191}}^1$

素因数の和:331

約数の個数: 48

約数和(自身を含む): 39283200

約数和(自身を除く): 19505150

約数列:

[1, 2, 5, 10, 19, 25, 38, 50, 95, 109, 190, 191, 218, 382, 475, 545, 950, 955, 1090, 1910, 2071, 2725, 3629, 4142, 4775, 5450, 7258, 9550, 10355, 18145, 20710, 20819, 36290, 41638, 51775, 90725, 103550, 104095, 181450, 208190, 395561, 520475, 791122, 1040950, 1977805, 3955610, 9889025, 19778050]

約数ペア:

[(1, 19778050), (2, 9889025), (5, 3955610), (10, 1977805), (19, 1040950), (25, 791122), (38, 520475), (50, 395561), (95, 208190), (109, 181450), (190, 104095), (191, 103550), (218, 90725), (382, 51775), (475, 41638), (545, 36290), (950, 20819), (955, 20710), (1090, 18145), (1910, 10355), (2071, 9550), (2725, 7258), (3629, 5450), (4142, 4775)]